I had a girlfriend who worked at a steakhouse in Tampa in the day when they beat the shinola out of each other in St. Pete on Saturday, and do it all over again in Tampa on Sunday, then go out for steak dinners before hitting the road to other venues. Terrible threats on the television then laughing and sharing a meal an hour later. She always said the bad guys were the funniest customers and best tippers.
Look up "Professor Toru Tanaka" on ImdB sometime. His real name is Charlie Kalani, and was an American (Hawaiian), not Japanese. He served honorably in the US Army and had some movie roles, most notably with Arnold Schwarzenegger. Another wrestling "heel" who was a good guy in real life.