I'd use a knife and fork on fried chicken, but not on pizza. As for chips - I suppose it depends on where it is. If it's fish & chips somewhere casual, then I'd definitely use my fingers. But if it's pommes frites in a posh restaurant, then I'd use my knife and fork.
I kind of understand your DB, though, Belita. I hate getting my fingers messy too! I go through LOADS of napkins if I have to eat something without cutlery. And that's sort of odd since my Dad's side of the family is Muslim and they eat just about everything with their fingers.