How in The General did No.6 know that the Professor's head, as he brought that walking stick down upon, was made of plaster? And why did Madam Professor scream out? After all it was her that made that plaster cast of her husbands head. Perhaps it was not her husband she was screaming out for, but because her masterpiece was going to be smashed to pieces by No.6 and that walking stick.
Be seeing you