A few things that drivers do:

    - Failure to use signals to merge lanes
    - Speeding in excess of 80 mph
    - Tailgating (because otherwise someone would cut in front of you and you'd never get where you're going)
    - Left lane camping
    - Aggressively punishment passing left lane campers
    - Not stopping for right on reds
    - Having 1000 yard stare to the left when turning right on red and being oblivious to pedestrians
    - Failure to get up to speed on onramps
    - Stopping in the middle of the freeway when missing an exit
    - Multiple lane changes without looking to make an exit
    - Backing up on the breakdown lane to make a missed exit
    - Backing a semi down an exit lane to rejoin the freeway because it was the wrong exit
    - Merging into the merge lane of an onramp to pass traffic
    - Using the shoulder to pass traffic
    - Distracted driving and blowing through red lights (with the resultant T-bone side impact collisions)
    - Drunk driving
    - Wrong way driving (drunk, elderly or suicidal)
    - Lane cutting
    - Failure to zipper merge properly
    - Playing "follow the leader" through non-permissive left turns without looking for oncoming traffic
    - Turning left immediately when the non-permissive light turns yellow without yielding for oncoming traffic
    - Multiple cars turning left long after their permissive green arrow has changed to red
    - Detroit/Massachusetts left turns
    - The "right on red / illegal u-turn / right turn" trick (not an actual legal Michigan left / Mexican returno)
    - Entering the oncoming traffic lane when their lane is blocked without checking for oncoming traffic
    - Using honking as a means to "punish" other drivers
    - Blocking other drivers and aggressive lane changes and road rage

BUT OH MY FUCKING GOD THAT BICYCLIST THAT BLEW THAT STOP SIGN IS THE REAL SIGN OF SOCIAL DECAY