There was a fellow that lived near us a few years ago who aspirated his mac and cheese... died a couple of days later. His wife said she tried to get him to slow down eating the mac & cheese, but he wouldn't listen. She ~claimed~ to not know how to do the Heimlich Maneuver...
What's more important, I think, is are you worth more dead, or alive? ie: If you have an annual income of 35k Pounds, but have a life insurance policy worth 100k, then you might keep an eye out...