In fact, I'm not sure that anyone ever has.
A churl is a surly, ill-bred person (though you can be churlish even if you're quite high-up, like a Prime Minister or a President. Dukes in particular are noted for their churlishness. They have been known to addressing even their boiled eggs with a sneer.)
Long ago a churl was a ceorl, who was the lowest sort of free man in Anglo-Saxon England. Later a churl became a term for a farm labourer (and who wouldn't be a bit grumpy when faced with digging up a whole strip of turnips? Let's face it, I'm not all that cheerful at the moment, and all I have to do is rake the lawn.).
Even if you're neither bad-tempered, a peasant, nor an Anglo-Saxon, it's still possible to be churlish in its sense of being miserly. That sort of churl is the sort of person who avoids eye-contact with people who have collecting boxes, uses his tea-bags more than twice, and always claims his sweets have all been dropped on the toilet floor.
Thing Not To Do Today: be churlish. This word comes from the Old English ceorl and is related to the Old Norse karl and the Greek gerōn, which means old man.