Run away cart

I am pulling into Target and luck be with me I have a premo spot at the front of the store but as I am pulling in I notice that there is a cart in the front of the stall. If I pull all the way in, I should be okay. Plan is to pull in until I barely tap the cart. All is going well as I barely tap it. But then I notice that the carts front end is now slow swing out. Surely there is not enough slope for that thing to start rolling down hill. Oh there is slope and it is starting to pick up speed. Like in a horror film where the victim realizes he must get out of the car fast or be eaten, I throw it into park and frantically fumble with the seat belt that seems to be stuck. Cart is now 4 stalls away from broad siding some Cadillac. Finally I am out and racing wait no hobbling because of the slightly sprained ankle. Fighting through the pain I over take the cart stopping it short 5' from impact. I sort of expected a cheer or clapping from the spectators but most likely they were thinking WTF why was that old fat man in a polo fleece jacket racing across the parking lot for.
Sigh