I have worked both FF drive up and bank drive up and I have seen a lot of crazy stuff. Hey, it keeps the job interesting. The last bank I worked for allowed customers to purchase bank checks and money orders through the drive thru, really anything the customer wanted, we were supposed to let them do in the drive thru. ???? I always felt bad for the poor person behind them. One time I was having problems getting the pneumatic tube into the bank. We could not figure out what was wrong and I am getting nervous because the customer's transaction in stuck in the tube. Well, after much questioning, I find out that the customer has packed the tube with loose change. PSA-the regular bank tube cannot move 10 pounds of change, please bring that in.