Nothing like being terrified of something you're a thousand times bigger than.
For their latest video, prank superstars VitalyzdTv and Roman Atwood tag-teamed putting the letter "B" on people (which apparently made its long-anticipated exodus from "Apartment 23"), and told them that they had said letter all up on them. The people, terrified of experiencing a painful few seconds followed by a not as painful few hours,* predictably disabled all inhibitions and went nuts. And it's great stuff.
*For those who are allergic, I imagine this would actually be an extremely, extremely cruel prank.