man and gator

a man walks into a bar with an alligator on a leash and sits down to have a beer....after a few beers he realises he is out of money....so he stands up and says,"i bet anyone 500 dollars that i can put my dick in this gators mouth and close his mouth and then hit him in the head and my dick will be un marked when i pull it out"...so a man throws a 500 dollars down to see this....so the man drops his pants puts his dick in the gators mouth slammed it shut hits the alligator in the head with a bottle,pulls his dick out and it is un marked....the man says,"now i will pay anyone 400 dollars if they wanna try it"....a hush fell over everyone,then a woman stepped forward and said,"i will but u got to promise not to hit me in the head