My driving instructor was pretty anal about this so it’s stuck with me since if your wheels are sticky out and someone crashes into them it’s your fault.
a) that’s bobbins, if you drive into a stationary object then there’s only one cause and it’s not sticky-out wheels. If you can find that in THC I’ll give you my bike.
b) turning your wheels when parked at the kerb is to be encouraged, especially on a hill. If your handbrake fails, your car won’t be doing Herbie impersonations down the road.
EDIT – turned into the kerb in relation to the slope, of course. It’s not clear to me from that photo whether he’s done that or not.