In your entire life so far have you ever once said "don't be a tough guy" to anyone for any reason?

"Don't be a wuss" or "don't be a sap" or "don't be a doormat" or "don't be a dupe" or "don't be traitor" or "don't be a lapdog puppet" or "don't be so gullible". Yes. But "don't be a tough guy"? Who talks like that in the real world?