Fun?

I noticed a group of kids going down our big, green, plastic slide this afternoon - yelling "ow -ow-ow" the whole way.  When they finished, they'd giggle and climb the stairs to do it again.  Finally I had to ask what they were doing. "Getting shocked!" I was told. And they went to do it yet again.  I struggled to make sense of this seemingly odd behavior but felt better when I rationalized they were just excited to learn about static electricity. Guess who's bringing in balloons for them to rub on their hair tomorrow :)