Do I need a tetanus shot?

(1st post, Hi all!) It is my understanding that if your wound was bleeding pretty well, you simply can not get infected w/ tetanus. It is the deep puncture wounds that do not bleed that are a worry. The oxygen in your blood prevents infection. The tetanus shot also will not help w/ this injury, you would need the TIG, as the vaccine is not retroactive - docs just see it as an oppurtunity to stick you. You can have your immunity level checked (titers) to see if your last shot is still effective. So if it were me or one of my crew? Nope, no shot in this case.