Just as these 15 people, who were immediately embarrassed after assuming the person they were speaking too was too dumb to understand. She was getting frustrated with me as she assumed I was the IT dude, and obviously not a very good one. Fast forward to the session itself, and I introduced her to the room of 40 people and thanked her for coming. Most of what we sell in the U.S. are sweet potatoes, though some sweet potatoes grown in one state (Louisiana?) Every time I rang them up, I would get told that they were yams and that I was dumb for not knowing that.