What's the biggest "fuck you" that you've seen a person do to a total stranger?

On any given day, there's a big fat "fuck you" happening in traffic.

So I'm driving home from work...

I always go through this one-way street which connects to a big avenue. Thing is, every now and then you run into some wiseguy trying to get to that avenue by driving in the opposite direction.

So I'm driving home, I'm on the big avenue then take a right on the one-way street. There is a guy (we'll call him Bob for story-telling purposes) in front of me who's heading the same way. Suddenly, a wild wiseguy appears and decides to drive the opposite direction in order to get to the big avenue quicker (otherwise he'd have to do a big loop that'll take maybe an extra 5 minutes). Usually when this happens people let them through (to avoid further delay) and just scream at them when they drive past them while honking like crazy.

Not Bob.

I don't know what kind of day Bob was having, but today was not a day to fuck with him. As the wiseguy squeezes through this one-way street getting blasted with honking and insults, he suddenly find himself heading toward Bob (who is driving in front of me). I myself am like "fuck this wiseguy, nobody respects driving laws here, fucking fuck...blahblah".. the usual..

Well, as opposed to letting him through and honking and flipping the guy off, Bob decides to approach things differently. Bob decides to place his car right in front of the wiseguy driving toward him. Obviously, the wiseguy is in a pickle now because he can't move forward because of Bob. I've done this before to wiseguys in an attempt to have them go in reverse or turn around the right way. Usually I do this for a couple of minutes but then I get tired and realize I'm wasting my own time too and just drive past them after some serious flipping and honking.

Not Bob.

At this point I'm at an angle behind Bob where I can see the wiseguy sorta smiling and laughing it off like "haha cmon dude i get it but let me pass bro haha". To which Bob does something I'll never forget and is by far top 10 in my list of biggest fuck yous or bad-assery: Bob puts his car in PARK, turns his car off, gets off, walks past the wiseguy without even acknowledging him or doing anything, walks to a nearby food-truck and gets in line to order.

The wiseguy's smile faded rather quickly. He was trapped, and Bob's car wasn't going anywhere. I was stunned in admiration for this man's actions. Taking shit a step further. I was able to maneuver around them both because of a small gap on my right side (which the wiseguy had no way of doing because his car and Bob's car were kissing front bumpers) and drive home, but all I thought about on my way there was Bob's epic "fuck you".

Edit: grammar

A pair of glasses were turned in to the lost and found at my work today. Someone carved big X's in the lenses in the 30 minutes between being lost and being turned in.