In "The Big House", in "Doc's" first escape, he does not wear his jacket. In his second escape, he puts it on before using the conveniently placed key on the peg, outside the door, to escape. Was there a sudden change in weather?
Have not worked one of those nutcrackers in perhaps 30 or 40 years! So I forgot. But I remember as a kid, bowls of nuts with a nutcracker on a table were quite common. My Aunt Emma had one. I would guess that I did not put the shells back in the bowl.