After footage of Dennis having an on-set meltdown showed up on YouTube, Dennis had to call his mother and explain that it was all an elaborate Funny or Die .\r<br>\r<br>The gavel plummeted to the ground after Dennis celebrated the closing bell at the New York Stock Exchange a little too enthusiastically. More CONAN .\r<br>\r<br>SUBSCRIBE to NewsBreakers YouTube Channel: People questioning whether or not the meltdown is a Jimmy Kimmel prank, something .\r<br>\r<br>See Harrison Ford in 42! Go to SUBSCRIBE to get the latest #KIMMEL: Watch the latest Mean Tweets: .\r<br>\r<br>
