i used to do this far too often. was never anything severe though, just sort of "look at me i'm drunk", which is always less funny when you ring your parents at 2am doing that. ah, student life.
i think one of my coworkers has got this nailed though. she's just been on holiday to hawaii, and confessed to me that one night, while drunk at midnight, she drunk-dialled one of the directors where i work, in any case, she left a message on the director's phone, very drunkenly. nothing's been said about it. i like her style though. get drunk, ring a director who's probably very busy. she's not been sacked yet though.
anyway, share your drunk-dialling or being drunk-dialled experiences below. best (worst) one wins a prize of my choice