I have to do the job of checking myself out, then bag my groceries, and then face the prospect that later on, you will review a security tape and decide that I didn't pay for something, and then you want me to tip.
The Texas Department of Agriculture's most recent report for 2020 listed 111,824 inspections statewide of price-scanning systems in Texas. Of those, 8.4% were found to have at least one violation.