Do custom without shame! They are bullying you. These card readers with tip suggestions are getting annoyingly coming here too. One time in Berlin I went to a donut stand and the suggested tips started at 10%. I gave them 1 star on Google maps and complained. They replied that that’s just how the machine works. I know perfectly well that’s customizable…
I would also say that if you were vegan and then stop being vegan because people were mean to you, you were never vegan to begin with.
Veganism is about reducing animal abuse and suffering as much as possible. It’s not about you. If you just drop your morals because someone was mean to you, then I question those morals.