If it’s a nice straight stretch on a level road, I hate when people are driving slower than necessary. Or worse brake for no reason. I never understood why some people brake to slow down when there is no obvious reason to slow down like an upcoming intersection, a turn, or an obstacle. They just brake because they feel they are going too fast. It’s safer if they just ease off the gas and let the engine slow the car down gently and safely. Even with an automatic this slows the vehicle nicely.