My mule is getting rambunctious, kicking in its stall out back. I wonder if he is just anxious or gone loco or he's just being stubborn. All mules I know from experience eventually go loco. I'd hate to have to call the vet, but I may have to. I have the only vet in town who makes mule house calls though he is as stubborn as one about coming out. Some people think it is I who is loco for keeping a mule for a pet. My life; my decision. So there.