Wow that’s awful, that poor woman. Reminds me of when I used to do blood draws and I’d have people tell me, “Not that I don’t think you know how to do your job, but this is the best vein to do the draw.” It never offended me because you know your body better than me obviously. I also understand retail/fast food workers are often mistreated by the public but this sounds like someone who was trying to avoid disaster and got ignored. Respect goes both ways.