I too always have good, friendly service from Sergio, and the other guys are usually pretty friendly. It's a surprise to me they would be so aggressive without provocation. Sean, the people in Romeo Jones are cheery, as are the waiters in Cafe Rouge which I've been to a couple of times recently, The women in Biff are pretty helpful, so I don't often get 'surprised' when in the shops there I get decent service. The chemist can be a bit grumpy though.