You are in an enclosed area, roughly the size of a basketball court. There are no foreign objects. - You are not allowed to touch a wall. - When you are knocked unconscious, you lose. When they are all knocked unconscious, they lose. Once a kid is knocked unconscious, that kid is "out." - I (or someone else intent on seeing to it you fail) get to choose the kids from a pool that is twice the size of your magic number. The pool will be 50/50 in terms of gender and will have no discernable abnormalities in terms of demographics, other than they are all healthy Americans. - The kids receive one day of training from hand-to-hand combat experts who will train them specifically to team up to take down one adult. You will receive one hour of "counter-tactics" training. - There is no protective padding for any combatant other than the standard-issue cup. * The kids are motivated enough to not get scared, regardless of the bloodshed. Even the very last one will give it his/her best to take you down. I set my magic number at 30, but upon reflection, I think I could take on a few more. How many could you take on?