Tell me some of your stingy stories. The ones where you've had a friend out to dinner and they inspect the bill down to the last €0.20.... or the guy at the office who refuses to bring in the Friday biscuits but eats everyone else's! 
I know a guy at my work who is a full time smoker but never has a box of cigarettes. Just asks someone different every time. He gets away with smoking ten a day, one off a different person every single day!
I asked him for one before after giving him my last few a couple of times and he said 'no, these need to last me 2 days' 😆