Scientists agree that the only reason adults have children is so that they have a socially acceptable reason to visit amusement parks, eat at novelty pizza arcades, and see movies with Shreks in them. Put some fun in the oven with today's kid-friendly Groupon: for $20, you get five open-jump passes at Pump It Up (a $40 value). Passes can be split among multiple children, and adults always enter for free.

Pump It Up invites overenergized youngsters to tucker out their internal springboards in safe, inflatable indoor arenas. With five open-jump passes, children can leap around gargantuan air-filled bounce houses, skip down air-filled slides, and slither like snakes covered in bacon grease through an air-filled obstacle course. Pump It Up’s fun-tastic facilities are climate controlled and maintained according to rigorous guidelines enforced by a well-trained staff.

From expert installation and anchoring to insurance coverage and rule enforcement, Pump It Up holds itself to strict safety standards. Since jumping is an exciting method for burning calories, a lively lark through Pump It Up’s inflatable fun houses will cause youthful energy to melt off faster than ice cubes thrown into a running DVD player.