I'm seeing a pattern here! :o
Behind every cheeky bugger stands a sucker.
Case in point:
'She would say she had eaten already and order a drink.She would then proceed to try everyones food,have a slice of someones pizza, share a dessert etc and then when the bill came say - "I only had a drink" grrrrrr'
Back in the day, I was a comfortably-off, childfree professional who mingled with similar folk who enjoyed rock climbing and hiking. We also liked to go for meals afterwards.
There was one guy who was very comfortably-off and made no secret of it: a childfree by choice, single man who worked abroad often as a petroleum engineer. He was forever tittering at us 'mortgage monkeys' because of course, everyone can be mortgage-free by 35.
It soon became apparent how he did. He was one of those 'I only had a drink' types - no tax or tip, either - who asked to try out peoples' dinners.
He got away with it twice before everyone started telling him, 'Oi, Brett, you cheeky bastard! Go buy your own fecking dinner!'
Come bill time, when he tried to not pay tax or tip, another person called him out. 'I just had a drink.' 'Yep, and with tax and tip, that's $8. I have change for a ten,' and stuck his palm out.
He stopped trying to take the piss once he know no one would put up with it.