Urinating with class
If you’re only going to use the cleanest porcelain toilets, then using a public restroom is out of the question. They are usually stained with grime and other unmentionable substances. If you need to go but don’t want to risk your health, just go to a hotel instead; their bathrooms are always clean!
To avoid detection, go to the bathroom as soon as you enter the hotel. Their bathrooms are always clean, so there’s no worry about catching anything. Once you’re done, pick up your phone and make an exaggerated call while walking out the front door.