Shit happens. It is an ass after all. While the video is hilarious it touches on an issue men who engage in anal sex seem to forget. The anus was made for exits and not entries. You can run your ass by the carwash and have them run a hose up your ass til you grow grass. The fact remains anytime you stimulate the anal walls you run the chance of seeing some chocolate rain.
Sidenote: There is a brief glance at Armon's cakes during this video which make it worth watching even if you don't think its funny.