Is true about tipping Bar staff in Europe 'toad. If a barman has done well in England you offer him a drink when you buy your round. I remeber drinking in a pub with an American friend on her first visit to the UK - the barman literally couldn't believe it when she told him to keep the change. Make of that what you will.

You are also right about the staff getting surly with tourists who don't tip in Orlando - it doesn't exactly encourage you to tip the next time round though!