" Wolfe shook his head. "No. Only that afternoon. If we had to argue that it is not credible that it was left in the cupboard for an extended period, just for anyone to use, but we don't have to. The bottle in that cupboard contained good iodine at four o'clock that afternoon."
Cramer growled. Daniel demanded, "How do you know that?"
"Because it was used at that hour. By Archie. He tripped on an alligator and scratched his hand. "

― Rex Stout , Black Orchids (Nero Wolfe, #9)