During the Vietnam War, Mr. Watts, who served in the military from 1950 to 1961, refused to let his boys play GI Joes.
There would be no more killing, he said.
But now, Mr. Watts says he plans to buy a gun and obtain a permit to carry it.
"What happened to me … down here on the corner, that changed my perspective on humanity," Mr. Watts said.
You're never too old to learn
Even if you are in your late 70s.