I dont want to do it but it came about a debate on whether or not your hamstring could be torn on purpose if so how?

Get new friends: Trying to harm yourself due to a debate is not a good idea. If the debate was with your friends you need better friends. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine. Wish you good health!