Talk about renewable resources.... ;p

245 WATTS Body Battery Calculator - Find Out How Much Electricity Your Body is Producing -

This is 2% LESS wattage than the average person
You could light up 2 light bulbs
You could power 61 iPods
You could power 1 Xbox 360
4 of you would be needed to keep a refrigerator running

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And more interestingly: (i heard this on BBC Radio 1)

This short survey will tell you approximately how many five year old children you could fight at once. Results are based on physical prowess, training, swarm-combatting experience, and the flexibility of your moral compass. Here are the ground rules:
-You are in an enclosed area roughly the size of a basketball court
-There are no weapons or foreign objects
-Everyone is wearing a cup (so no kicks to the groin)
-The children are merciless and will show no fear
-If a child is knocked unconscious, he is "out." The same goes for you.

20

Of which, one of the questions were:
"During the fight, would you feel morally comfortable picking up a child and using him/her as a weapon to throw at other children?" muahaha...

So how many five year olds can you take on? Let me know! ;p