Even after purchasing the most expensive mousetrap he could find in the toy aisle… Biffs rodent problem continued. Sky dive solitaire never caught on. Biff realizes that gingerbread is not a structurally sound building material. Sneezing, and model ship building, don’t mix. Biff realizes he should have swallowed that gum before going on his space walk. Biff realizes there is a reason no one sleds down that side of the hill. Biff realizes it is not more comfy on the inside of the mattress.