Took my 13 year old daughter for her school physical and shots a few months back. Without my permission the doctor ordered a "flu" shot to go along with her regular boosters. When I found out about it thanks to the nurse double checking with me. I put a stop to that shot and went off on the doctor. As of that day, my daughter will no longer be getting any shots and neither will I. As for dirt in a cut or wound? Dirt is an awesome coagulant that will stop the bleeding until you can get somewhere to clean and dress the cut or wound... First hand knowledge on that one...