Dick move, brah.
Let me first say this: I in no way condone this prank.
Stunts like this one can be dangerous, and doing them without professional medical help within reach could lead to serious harm, not to mention the inherent value in losing the trust of your friends and loved ones.
Good. With that out of the way, how brilliant was that prank??!?!? Taping a full bag of hot sauce to a straw in a to-go cup?
Genius! Pure genius! This guy deserves a government grant or something to further his pranking research.
Don't try this on your friends -- unless your friends totally deserve it. In which case, you should totally do this to all of your friends.