Hypothetical child abuse, or just damn funny?

Came across this on some random blog out there - a hypothetical question (obviously):
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The question: How many 5 year-olds could you take on at once?

The specifics:

- 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?
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See 20+ pages of ramblings, musings, thoughts, and opinions on the subject here. I don't know why I found this so damn funny...