Sorry, but I just need to have a rant about this ... dh and I went to a local Italian restaurant this lunchtime to celebrate his birthday and after a perfectly adequate meal - you know, nothing to complain about but nothing to write home about - we got the bill and found that the 'optional' service charge had already been added on. On handing over his credit card, dh asked for the service charge to be deducted, the waiter asked if something had been wrong and dh said no, we just think it is wrong to add the service charge on automatically. The waiter leaned over and said very quietly 'if you don't like the service here, please don't come back'. We were both gobsmacked ... I just walked out and left dh trying to explain that had they not added the charge on themselves, they probably would have got a tip but now have no fear, we will never darken their door again.
I don't think I have been anywhere else where they print 'optional service charge 10%' all over the menu and tell you to bugger off and not come back if you don't want to pay it.
Rant over .... sorry