diff --git a/lib/Pico.php b/lib/Pico.php
index e74b49c..37c6a27 100644
--- a/lib/Pico.php
+++ b/lib/Pico.php
@@ -395,13 +395,13 @@ class Pico
         $this->triggerEvent('onRequestFile', array(&$this->requestFile));
 
         // load raw file content
-        $this->triggerEvent('onContentLoading', array(&$this->requestFile));
+        $this->triggerEvent('onContentLoading');
 
         $hiddenFileRegex = '/(?:^|\/)(?:_|404' . preg_quote($this->getConfig('content_ext'), '/') . '$)/';
         if (file_exists($this->requestFile) && !preg_match($hiddenFileRegex, $this->requestFile)) {
             $this->rawContent = $this->loadFileContent($this->requestFile);
         } else {
-            $this->triggerEvent('on404ContentLoading', array(&$this->requestFile));
+            $this->triggerEvent('on404ContentLoading');
 
             header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found');
             $this->rawContent = $this->load404Content($this->requestFile);
@@ -413,17 +413,17 @@ class Pico
         $this->triggerEvent('onContentLoaded', array(&$this->rawContent));
 
         // parse file meta
-        $this->triggerEvent('onMetaParsing', array(&$this->rawContent));
+        $this->triggerEvent('onMetaParsing');
         $this->meta = $this->parseFileMeta($this->rawContent, $this->getMetaHeaders());
         $this->triggerEvent('onMetaParsed', array(&$this->meta));
 
         // parse file content
-        $this->triggerEvent('onContentParsing', array(&$this->rawContent));
+        $this->triggerEvent('onContentParsing');
 
-        $this->content = $this->prepareFileContent($this->rawContent, $this->meta);
-        $this->triggerEvent('onContentPrepared', array(&$this->content));
+        $markdown = $this->prepareFileContent($this->rawContent, $this->meta);
+        $this->triggerEvent('onContentPrepared', array(&$markdown));
 
-        $this->content = $this->parseFileContent($this->content);
+        $this->content = $this->parseFileContent($markdown);
         $this->triggerEvent('onContentParsed', array(&$this->content));
 
         // read pages
@@ -1490,15 +1490,12 @@ class Pico
             $id = substr($file, $contentDirLength, -$contentExtLength);
 
             // trigger onSinglePageLoading event
-            $this->triggerEvent('onSinglePageLoading', array(&$id));
-
-            if ($id === null) {
-                continue;
-            }
-
-            // drop inaccessible pages (e.g. drop "sub.md" if "sub/index.md" exists)
+            // skip inaccessible pages (e.g. drop "sub.md" if "sub/index.md" exists) by default
             $conflictFile = $contentDir . $id . '/index' . $contentExt;
-            if (in_array($conflictFile, $files, true)) {
+            $skipFile = in_array($conflictFile, $files, true) ?: null;
+            $this->triggerEvent('onSinglePageLoading', array($id, &$skipFile));
+
+            if ($skipFile) {
                 continue;
             }
 
diff --git a/plugins/DummyPlugin.php b/plugins/DummyPlugin.php
index c201628..00877bd 100644
--- a/plugins/DummyPlugin.php
+++ b/plugins/DummyPlugin.php
@@ -113,10 +113,9 @@ class DummyPlugin extends AbstractPicoPlugin
      *
      * @see    Pico::loadFileContent()
      * @see    DummyPlugin::onContentLoaded()
-     * @param  string &$file path to the file which contents will be read
      * @return void
      */
-    public function onContentLoading(&$file)
+    public function onContentLoading()
     {
         // your code
     }
@@ -126,10 +125,9 @@ class DummyPlugin extends AbstractPicoPlugin
      *
      * @see    Pico::load404Content()
      * @see    DummyPlugin::on404ContentLoaded()
-     * @param  string &$file path to the file which contents were requested
      * @return void
      */
-    public function on404ContentLoading(&$file)
+    public function on404ContentLoading()
     {
         // your code
     }
@@ -167,11 +165,9 @@ class DummyPlugin extends AbstractPicoPlugin
      *
      * @see    Pico::parseFileMeta()
      * @see    DummyPlugin::onMetaParsed()
-     * @param  string   &$rawContent raw file contents
-     * @param  string[] &$headers    known meta header fields
      * @return void
      */
-    public function onMetaParsing(&$rawContent, array &$headers)
+    public function onMetaParsing()
     {
         // your code
     }
@@ -194,10 +190,9 @@ class DummyPlugin extends AbstractPicoPlugin
      * @see    Pico::prepareFileContent()
      * @see    DummyPlugin::prepareFileContent()
      * @see    DummyPlugin::onContentParsed()
-     * @param  string &$rawContent raw file contents of the requested page
      * @return void
      */
-    public function onContentParsing(&$rawContent)
+    public function onContentParsing()
     {
         // your code
     }
@@ -246,16 +241,22 @@ class DummyPlugin extends AbstractPicoPlugin
     /**
      * Triggered before Pico loads a single page
      *
-     * Set `$id` to `null` to remove this page from the pages array.
+     * Set the `$skipFile` parameter to TRUE to remove this page from the pages
+     * array. Pico usually passes NULL by default, unless it is a conflicting
+     * page (i.e. `content/sub.md`, but there's also a `content/sub/index.md`),
+     * then it passes TRUE. Don't change this value incautiously if it isn't
+     * NULL! Someone likely set it to TRUE or FALSE on purpose...
      *
      * @see    DummyPlugin::onSinglePageContent()
      * @see    DummyPlugin::onSinglePageLoaded()
      * @see    DummyPlugin::onPagesDiscovered()
      * @see    DummyPlugin::onPagesLoaded()
-     * @param  string &$id relative path to the content file
+     * @param  string    $id       relative path to the content file
+     * @param  bool|null $skipPage set this to TRUE to remove this page from
+     *     the pages array, otherwise leave it unchanged
      * @return void
      */
-    public function onSinglePageLoading(&$id)
+    public function onSinglePageLoading($id, &$skipPage)
     {
         // your code
     }