It's the principle

Have come up with a cunning plan for snacks at RBR over next two days. Stopped off at Hofer (a.k.a. Aldi) and bought some provisions, water, rolls, meaty sticks, plastic cheese slices and some pretzels. They can stuff their cashless card. I'm more than happy to pay cash, don't see why I should pay for the 'privilege' of not being able to.