Pavlovian response

I'm assuming everyone knows about Pavlov's experiment with the bulldogs where he rang a bell when it was feeding time and soon enough they started salivating every time they heard a bell. Well, something similar has happened to me, and it is really annoying. Last semester, I would get home from school every day, take out my keys, go in the house, and go to the bathroom. Apparently I have done this for too long, because now every time I get home from school and take out my keys, I have to pee. Really badly. I am completely fine until I take my keys out, and then it hits me. It doesn't matter what time I get home, either. I don't even notice it until I see my keys. I think I have a pavlovian response to my keys-- they make me have to go to the bathroom because I associate them with the bathroom.

This is problematic because it's February, and our door gets harder to open when it's cold, and I wear snow boots, a scarf, and a huge jacket. It takes me much longer to get into the house, and then shedding all those layers and making it to the bathroom takes even longer. So I am stuck outside my apartment every day doing a "pee pee dance" and trying to get my key in the door. There have been some close calls. This is ridiculous! I am not a bulldog! I shouldn't wet my pants because my keys remind me of the toilet.

I don't know what to do. Should I slap myself every time I see my keys so I associate them with being slapped and not with going to the bathroom? This is annoying.