haha. that sign is good too!
Actually, when I think of some of the practical jokes ive witnessed or been part of I do feel like a bad human. i WISH i had a photo of that carboard alloys though. two of use did that while our mate was asleep at the end of a house party. He had work in the morning and was really late because he got up late, then had to find some snips to cut off the ties before he could drive anywhere.