Sometimes my instructor scolds me and tells me not to do
something, when for the last 5 lesson's i've been doing it without
him saying anything. For example, during my lessons he taught me
when approaching a red traffic light to switch down 1 gear, and
then step on the brake and then engine brake when my speed is low.
So on my last lesson when I did this, he suddenly got angry with me
and said I should brake all the way first and then switch down to a
lower gear just before I stop.. Makes me confused 
Also for when I practice parking for the first time, he just set up
the poles, tell me how many steering wheel revolutions I need to do
and when, and just leave the car to go talk to other instructors in
the carpark. Then gets angry if I don't park it straight or
properly. Or sometimes he just stay in the car and plays with PDA
all the time and complain when the car wasn't parked straight or I
forgot what to do
