Will this water trap stop a cunning cat from opening the door?

[anon3072533]

@GoatCheezInfrno

more than once she was walking around on the ceiling beams in the family room, or on top of the kitchen cupboards.

I lived with a cat once who would jump from the top of the refrigerator onto the wood trim above the kitchen doorway, and then pace back and forth above the doorway. Said trim was about 1-1/2 inch wide. Watching her turn around on it was fascinating.