Comment by biot

I find tipping culture really confusing. How is it that when your plumber saves the day and gets your leak fixed (saving you expensive flood restoration costs) you pay the price on the invoice, yet for a car ride from A to B it's worth paying 20% to 30% over the invoice price? Compare that to buying a new vehicle where, regardless of how knowledgeable and spectacular the salesperson is, you are considered to be getting a bad deal if you don't bargain to below invoice price.