Inspired by the "reserving tables" thread.
No problem if it isn't crowded but some groups of people think it's ok to sit for a couple of hours or more in a busy café having only bought one drink each.
Last year in Cornwall I even saw one family sneakily get out a sandwich lunch which they ate furtively.
Last week Dsis and I popped into a cafe for a coffee before embarking on a shopping spree for her newly decorated living room. An hour and a half later we went back for lunch and saw the same group of people at the same table with the same empty coffee cups. It was really busy but they pretended not to notice the hovering people with food laden trays.
It is rude and inconsiderate, isn't it?