I've had 4 lessons so far. Generally speaking he's a good instructor. Gives me (as a nervous driver) the push I need to get on with it. Constructive advice..but he keeps "playfully" hitting my arm. I tried to ignore it at first. Sometimes he places a hand on my arm and sometimes he full on wacks me on the arm for no reason?! He is in his 50s. I thought at first maybe it's just a generational thing. It's got more annoying with each lesson! I'm quite shy so not one to say fuck off don't touch me. Is this normal? Should I just find someone else? It's not effecting my ability to drive but it gives me the ick!