I have worked professionally with all kinds of snakes for 15 years, I have fed live, F/t, stunned etc and I have owned snakes since I was 10 years old. I have never once been tagged. I guess I am lucky or saving up for one hell of a bite.
The one thing I am a freak about though is sanitizing my hands after handling any rodents. Also if they are mean I go straight for the hook.