at traffic lights they cut to the front,
only to advance relatively slowly when the light turns green
they blow through a stop sign as a car is approaching
I thought the former was entirely proper -- motorcycles do similarly, going up the gap between traffic. The latter, though ... I've seen that far too much, and is frustrating.
I'm surprised that when you do this, you can't then set the root password. (Also, holy cow. What a durable machine.)