... taking up an extra one with coats and sprawling across two is insufferably rude?
Waiting outside ballet and a father is doing just that whilst two mothers share a seat and I sit on the floor. He is also doing that Man Thing of taking up an inordinate amount of space with widely spread legs. Wanker.
I could, of course, say something but I am very non confrontational in this kind of situation so in shall simply whine about it here.