True, but you are now making assumptions too.
He's got money (possibly from everyone waiting at the table), so what? He was there first, and maybe he's just sick of crap pubs - I know I've walked out of some before. As someone else said, if the other guy is a local then he'll be there anyway, so what's the rush?
Slipping one if and when they can is ok, but not doing it so blatantly that the other person being served notices.
True, but it depends on the circumstances, and as you say, we weren't there.
I am just irked at the fact that he is an 'arse' just because he has money in his hand (Sure sign of an arse that you know!!

) when I said that he probably just had the money from others at the table.