18. Super Size Me
It is enough to imagine how one of these monstrosities could taste. With a ziploc plastic bag as a home-made piping bag, this rogue decided to take what was supposed to be a Sunday breakfast and quickly turned it into something that was downright disgusting.
The mere thought of what this mayonnaise sounds like, as if it were splashing and squirting through the piping bag, and it's horrible enough in those poor defenseless donuts that people run away screaming. The amount of disgust that this guy has to feel for the recipient of this prank is almost unimaginable.