Goose Eggs.. Why do they have to happen?

My poor baby fell on his head today.  I was at my friend's house and he decided to climb on stuff and  fell right on his head.  I can't keep him from climbing on stuff anymore and falling.  I wish I could because it breaks my heart when he gets hurt.  He is a typical boy, I guess. You should have seen his bump swell up immediately after.  We put ice on his head for a while and the bump went down considerably, but he still has quite the bump on his little head. My poor baby.