I gave a lady at Walmart a $5 tip the other week because she was running the only full service checkout and was working her butt off while I saw numerous coworkers of hers standing around chit-chatting with each other and basically doing nothing. She deserved it!
I’m not trying to be argumentative but what you saw was somebody doing their job. When you get hired you’re supposed to do the job as outlined in the job requirements. Its Wal-Mart’s responsibility to reward their employees not ours.
If you want to give someone money that’s your business. I give money to people who ask me for it all the time. I’m not tipping the salaried employees at every store I go into from now on. Its a ridiculous idea. Soon you’ll have to tip the Fed Ex driver, the UPS driver, the Amazon driver, the mailman, the pharmacist and basically everyone you do business with. Its a really bad idea.