It doesnt really work though, as the bartender would still have to notice the neutrino, which is independant of how fast its moving... or more simply, he couldnt notice it until it was in the bar - just as its faster than c wouldnt make knowledge of it arrive ahead of it.
Doing the rounds amongst my circle of colleauges (all physicists) is this one:
a barman walks into a neutrino. The neutrino says "oy, you just spilled my pint!". The barman says "Oh, sorry about that mate. Hang on, wait a minute –I haven't even poured your pint yet.” The neutrino says “oh, fair enough, can I have a pint then?” The bartender says “well, ok, but you’d better not cause any trouble. I’m not liking your attitude to this transaction so far”. The neutrino says “don’t worry I won’t be any trouble” and takes his pint, but then notices it’s a little short. “ere – this pint is short. That’s a violation of the weights and measures act!” The bartender says “easy mate, its probably just some kind of systematic measurement error. Anyway, you can talk – I saw you tearing in here, and I can’t be sure but it looked like you were violating the principle of relativity by travelling faster than the speed of light.” The neutrino says “calm down mate, I didn’t want any trouble”. The bartender says “no that’s enough. Get out of my bar” and ejects the neutrino roughly, spilling his pint as he does so, at which point they both realise there’s been a violation of causality resulting from the transmission of information at superluminal speeds and they both disappear in a swirling paradoxical vortex...