Max & Arlene lived by a lake in Southeast Idaho. It was early winter and the lake had frozen over.
Max asked Arlene if she would walk across the frozen lake to the general store to get him some beer.
She asked him for some money, but he told her "No, just put it on our tab".
So Arlene walked across, got the beer at the general store, then walked back home across the lake.
When she got home and gave Max his beer, she asked him, "Max, you always tell me not to run up the tab at the store. Why didn't you just give me some money?".
Max replied, "Well, I didn't want to send you out there with some money when I wasn't sure how thick the ice was yet"