hmm one of my favourites was while i was working on a PHP4 Project. at the time the constructor had to be like the java constructor and there was no destructor at all ... but one former dev seemed to be curious and added the following method
public Distractor() {}
which till this day is my favourite method call. Because I never can be sure if it was on purpose or if he just misspelled it but it did it's job ... it distracted me for 20 minutes ;)