Why do it? It is the boredom of night flying out in the boonies or something?
It sorta disturbs me that an apparently increasing number of pilots recently are demonstrating a mental maturity while they're flying which approximates that of a 2 year old (though arguably that might be insulting to many 2 year olds).
Aside from the stupid sounds and moronic comments, what takes the cake is someone deciding to clog up 121.5 with their ipod music for a minute. I like nothing more than a good joke, a funny quote, or some music. But not on the emergency frequency.
In a time where we're struggling to keep T's & C's at some reasonable level and show people how we deserve to be paid and treated as professionals, I can't thank you enough for making anyone listening out think we're a bunch of complete tossers.