Ex husband - would only buy the best, most expensive food when sent shopping, without thinking how we will cope the rest of the month. He would get himself only most expensive chocolate because “that’s what he likes” and a big standard bar for me. I was the only earner at the time! At home - opening fresh milk bottle when the old one is still fresh, within date. Not even trying to look for clothes in budget stores. Saying to other people that he is the head of household (without a job).