Perhaps the writer was looking out others and not wanting to spread HER germs from touching the food and inspecting it back into the kitchen....although with the comment regarding her unborn baby I suspect she was more concerned about herself.

Anyway, if you think this is bad, I suggest you never send your food back in a sit down establishment. Unless you are getting an entire plate completely re-cooked, you will get portions of your first meal back (veggies, baked potato, etc), but warm from sitting under a heater. Again crossing the "threshold" of the kitchen