I'm picking up my car this afternoon after having the front half and rocker panels covered in PPF. While Googling their hours, I randomly came across a thread where someone complained that their iPad will suggest an 18%, 22% or 25% tip. That seems absurd to me. I checked other forums (BMW, Mustang, Tesla etc) that discussed the same topic and the overwhelming majority of respondents said that they do not tip for PPF/ceramic installs.
I tip way above average for dine in restaurants. I'm not a big fan of tipping for takeout orders (separate topic) so I'm probably average there. But I don't tip my plumber, electrician, HVAC contractor, dentist, tire shop or other skilled trades.
Thoughts?