I have several times. It was Jim who Heimliched me.
Why did it happen? I did not chew the steak (it was always steak oddly) thoroughly before I swallowed. That is terrifying. Now if I had been alone I probably would have died? But why would I be eating steak alone? We rarely eat it in the first place. Well we used to eat it more than we do now. But if Jim is out and about doing "guy" things I just grab something quick. Tuna sandwich or grilled cheese. Steak alone? Nope. Never happen.
