Jim's roof leaks

The very able and hardworking Jim has been working on his roof all week. It's finally finished and looks great. Well, until I came and poked a big hole just above the kitchen making it leak like crasy.

So I don't understand why his wife is mad at him? How could he know that a gimp would poke holes in his roof? Nothing that DIY stores warns about that I know of.

It wasn't Jim, It was me!