Dad stands there bleeding.
SON NO. 2: There must be a First Aid station here somewhere.
SON NO. 1: Dude, this is WAL-MART.
Dad goes back to the car, son No. 1 finishes shopping.
Moral of the story — shopping carts are hazardous to your health, and don't go shopping with your sons the day before Easter if you expect to hop around today.