A group of friends went on a picnic. They brought along a big pack of biscuits. One of the friends, Jack, was really greedy for biscuits. He secretly ate most of them while the others were setting up the picnic area. When it was time to have the biscuits, there were only a few left. The others were so confused, and Jack had crumbs all over his face. When they found out what he had done, they all burst into laughter.
I'm not sure specifically which 'canned biscuit story' you're referring to. It could be about the invention of canned biscuits, how they are made, or perhaps someone's personal experience related to canned biscuits.