Another one: "Don't let your mouth write a check your ass can't cash.". And the corollary: "Don't carry a gun thinking it'll allow you to ignore rule 1."
I grew up on different turf and possibly in a different time, but in my day if you were yelling at a guy's wife or girlfriend you'd better either be able to quickly apologize or be handy with your fists. A man who was scared for his life after getting pushed down wasn't considered much of a...