"Ugh, you really just need to get out of retail."
That friends instead choose to say:
"I really respect and appreciate your hard work. Every time I go to the grocery store, or Target, or Starbucks, or any store for that matter, I think about how challenging your job must be and how valued you are for continuously instilling really important work values in young employees learning how to contribute positive things to the public."
How about that?