I think the one where there are 2 girls and 2 guys that had been swimming at a pond when BF appears and one of the chicks (a hot one at that) suggest one of the dimwit guys to swipe the towel at BF's arse he does and as he does BF grans him by the pants and sents him flying into the pond in his birthday suit then righteously chases the rest.
Which one do you think is funnier though?
