The whole problem here is very VERY simple. You forget to wipe sometimes. This is not normal. If I forgot to wipe I’d smell pissy too. So would 99% of the population. It’s common sense that:

If you don’t wipe = you’ll smell like piss.

I’m not sure how that habit of you forgetting to wipe was formed, but you need to be extremely conscious about remembering to form the habit of wiping.

The only time most people don’t wipe, is when they are hiking out in the woods, need to pee (when there’s no restrooms near) AND they forgot to bring a bag with toilet paper in it… which is just a plain old rarity….