My boss is in the building/property development business and though I actually get on well with him there have been 2 occasions where I have to bite my tongue. Firstly a well-known public charity paid him rent twice- about £4k each time and he's keeping quiet. Another one is a little local business keep messing up and over-paying us. They've overpaid by over £10k now. I'm just ticked off by his greediness. Would you just accept this?