I see 2 solutions stay away from the park or don't let mike go home without you.
I too fell from monky bars they had just blacktopped under it (to reduce the mud for the janitor) I had a goose egg on my forehead(still a scare today)They didn't call y mom and made me ride the bus home (2hourdrive) Boy I had never seen my mom mad before or heard her swear but I did that day..