Sometimes, Carol, we just have to find out where that boundary is so we can avoid pushing up against it in the future.
I loved your story about your husband. Mine seems to have a similar temperament. Quiet with a long fuse. I've seen some like behaviours from him. Ask me about him throwing a cheeseburger out the window in a McDonald's drive-through on a busy Saturday afternoon - with our three daughters sitting in the back seat. On second thought, don't ask me. Just imagine it. Hahahahahhaahaaaa
The girls and I still laugh about that incident.