A Rule of Funny

I'm going to devise a rule of funny. The funniness of a joke about going to war with a Country lies in inverse to the probability of going to war with that County. We can joke about invading Canada, but not Mexico. We can joke about going to war with India. People in Pakistan do not make jokes about going to war with India. So when John McCain makes jokes about going to war with Iran and the official policy of John McCain is to go to war with Iran, it is the very essence of unfunny.