I think that's what OP is saying happened... Yikes!

Luckily op just said the "need to pee" was there and didn't say "pee." So he opened the app and immediately felt he had to go to the bathroom, as oppose to opening the app and peeing his pants. Either way, I think there's a bit too much sudoku happening, and if you have trained yourself this way, maybe only play it in the bathroom. Pavlov and dog, meet op.

Come, I'll show you the door. Sir.

You tried a bit too hard on this one...

I wish I could thumb up this comment more than once.

Like the guy who gets a boner while listening to the national anthem?

Technically he's the Pavlovian dog of our time...

Technically he's both Pavlov and the dog of our time. Really a whole new species seeing as he both trainer and trainee.

An app to help with constipation would be priceless.

I actually did this. For various reasons I had about a month when shitting was incredibly painful... So I distracted myself with sudoku. Eventually got to the point where, even though i wasn't in pain any more, I found it really hard to shit if I wasn't playing sudoku. It was really surreal...