It is quite rare to encounter one, but sometimes it does happen.
A road with no traffic lights, cars all parked up to the tilt on the right (or blocked one way or the other) and the only way to gain visibility of traffic coming from the right is to poke our car slightly into the traffic to gain visibility.
This is dangerous not just because your car can be hit, it may also surprise the other driver into drastic action.
Traffic lights should be installed on those lanes or public mirrors should be smartly placed for visibility.
