Mainly referring to incidents on your commute that don't involve anything more than a few words back and fourth.

I usually don't, but I did go online and file a report today.
Long short...
He honked, buzzed and yelled to get on the f'ing sidewalk. I yelled "FU" and he slowed down. I then rode up on his drivers side, asked if he would like to stop. He said I was an f'ing idiot for riding that far out in the street (apx 2ft from the curb on a residential side street) I mentioned my rights and said we could ask the police their opinion.
He speeds up slams the brakes again and then takes off.
A bit more heated than written, but that is the short.

So do you usually file a report, let it go, think "I'll see them again"...