When I realized that the nozzle didn't fit my bike's tires, I was all, hey MTBG, how does this nozzle go on? He looked at me, turned around, took two steps toward the back of the room, and let out a loud SIGH. I couldn't blame him. I work with people too, and sometimes they ask me questions because they don't know things and I am the paid expert on the exact things they don't know and I am standing right next to them, and I have to humiliate them in front of others before I answer them, too. It's all just part of the job.