Three, the friends I spoke of are all well off enough to well afford it, which is why it narks me. Quibbling about whether someone else had a coffee and then getting into your Porsche is the mark of an a**ehole (and yes, the last time this happened to me, that was the exact scenario, and it was the friend between jobs whose coffee offended Mr Porsche)
Blue, pretty much all the fast casual restaurants do tipping out amongst all the staff now, so the cooks are getting a chunk of the waitstaff’s tips at the end of the shift. Again, Mr Porsche is notorious for not stumping up a couple of quid on a sizeable bill...
I should add that long long ago when we were students, Mr Porsche and I went out to lunch after class. I had a pizza and he had lobster and oysters. He then theatrically announced he had “forgotten his wallet” and I paid up with a certain edge in my smile.
Next time he suggested lunch, I suggested McDonalds