My recommendation's not there. Oh well... :(
Might be in the WTF collection, but I don't know.
Anyway, my favourite one is 'Where the missing socks go', simply because... well... I'm biased. I've been losing the motherfucking things since before I could even put them on unaided. This was kind of a running joke in my family as well as everyone else's. And since everyone can relate to this, I think it's the most universally entertaining of them.
Seriously, people who don't lose socks in the wash are hopeless anal retentives.