My dad was in the Army Air corps in North Africa and he told me about planes coming back from patrol all shot up and they would paint on a coat of "airplane dope" something apparently like model airplane glue, then lay some fresh canvas on it and then paint it with another coat and put the plane back in service. Consider how old planes were made, the sheet plastic was probably stronger than plywood, maybe not, it appeared that the planes structure wasn't damaged. I'll bet in the desert in north Africa they stuff probablt hardened in ten minutes or even less.

So did the bear get the food?

Jim