Actually I've got an interesting question about all of this tetanus business. You mention that people should get a booster if they stand on a rusty nail, but the thing is I have numerous times in the past hurt myself on like nails and barbed wire and stuff, and have never considered rushing to hospital or anything. I mean, it's just not something people ever seem to actually do, even if they are meant to.
So are millions of people risking their lives by not getting tetanus shots everytime they catch their arm on a nail or something, or do you only really need to get one if like the nail goes right through your hand or something?