I am a pharmacist at a retail chain that has float pharmacists and float techs. For a while we kept getting this float tech scheduled at our store. She was obese to the point that she could barely walk across the room to help customers. As you can imagine, her customer service skills were pretty low. Its hard to be upbeat and helpful when you can barely breathe. Then she would lean over the counter in one spot and wouldn't move. She was slow, rude, and pissed off customers. I couldn't stand her and had her banned from my store.