My husband, life partner, father of my child, person I love and trust more than any other and who always has my best interests in mind (patiently, to me): "Hold the Kettlebell like this."
Me: "Oh my GOD! Stop being so condescending. I am holding it like that. You told me to put my weight on my left foot and I can't while I'm holding the Kettlebell like that. Also, I don't feel like doing 10 more reps..."
TWO WEEKS LATER
Trainer I met four minutes ago: "Hold the Kettlebell like this." (Exactly the same way my husband showed me.)