Mud Puddle

Why can boys or kids rather, not resist riding their bikes through puddles?  We got a knock on our back door today, Rocco and Alivia wanted to know if Jonathan wanted to go to the park with them.  There were 8 kids in total that went and most of them were on bikes.  After the kids played on the playground for awhile, we were rounding up the troops to head home and I look...Jonathan is on his bike eyeing up a mud puddle.  I just watched him and sure enough he went right through the middle of it.  Of course the other kids joined in on the fun.  I couldn't yell because I did the same thing as a kid.