yeah, i had somone the other day at Aldi do somthing similar he game us the cart, started talking about jesus, we left and then we put the coin in the slot (cus its Aldi) and when we came to put the trolley back to our surprise he stuffed somthing into the lock to we couldent get the coin back, luckly some Asian people came and got it for us, his idea was we just game up and he come and collect the coin, scammer