Living in deep country I spend my life out-of-doors, and there's lots of old metal and barbed wire here. I had a bad cut from a knife last year and ended up getting stitches. I was fine with a tetanus shot - first one in eight years, after a bad cat bite. I'd never get one prophylactically but it seemed wise to get the shot after the event, hopefully the last I'll ever need. I'm glad the serum exists. Fighting tetanus after it has set in is not fun. I've had the rabies series as well. So I'm fit for a life amongst wolves.