The driving thing is a tired issue alright but let's not dress up facts with a pretty little red dress of positivity. If someone beeping a horn flashing their lights or any of that stuff is enough to put you in a bad mood or ruin your day thats something you need to work on as a person in this modern world. Little points of advice will do nothing to solve this human problem of in-humility. Thats what religion and self improvement is for.