I thought this guy went too far, but no, it seems there are a lot of examples of code tattoos:http://readwrite.com/2012/01/03/32_more_of_the_best_and_wors...
Which begs the questions: which snippet is important/timeless enough to use and, of course, which language. As the OP found out the hard way one should use a Lang where whitespace doesn't matter.
Ideas?