My only issue is they’re right next to the entrance of a Family Mart! Go inside and use the restroom! I’ve asked at a few convenience stores without a public restroom and more times than not they’ve let me use their employee one. Even if they didn’t, there’s these drainage grates all over. Choose one not right next to an entrance of a business.
I had another one, also Taipei, of a guy who looked to be in his early 20s who had just hopped off his scooter to take a piss. I was sitting at a red light and he was right across the street, middle of the day. Couldn’t find the pic, though.