“I’m a trainee at a large City firm – I’m enjoying the work so far and my colleagues are all outwardly nice. My problem is that I find some of the comments they make about the cleaners and support staff – many of whom, like me, are from ethnic minority backgrounds – really unpleasant.

“They always stay well clear of being explicitly racist – they are just insensitive, self-satisfied and show little idea of how life is outside of their own worlds. I find it pretty depressing that they see this as acceptable.