"wound" on the tire side The other day I was stopped at a traffic light when I felt my bike moving slowly forward. Did not pay really attention, thought there was a slight slope, so hit the brake and voila.
But it did not stop moving and I realized an idiot in his car was pushing me!!
I should have gone and yell at the guy but I freaked out: he is enough of a psycho to push a cyclist, who know what he can do...
So I deflected to the sidewalk to check the bike...
He was pushing on the rear mudguard and on the rack... the mudguard was bent just behind the crankset so I straightened it and it looked like the bike was fine so hopped on and finished the ride.

Only later I noticed that the contact of the mudguard on the tyre while being deformed left a "wound" on the side of the tire.
Cannot post a picture, sorry, but it looks like the integrity of the side of the tyre was compromised and one can see the fibers inside.
It does not "leak", the tube cannot be seen or anything but I hate it...
Is the tyre fragilized enough to increase significantly puncture risks? could it "explode" and cause a more serious accident?
Does it need replacing? I hardly think so,... but well...
I would ask myself the question: "Even if it looks like the tyre is ok, do I really want the hassle of the thing blowing 10 miles from home - even if there's only one chance in a hundred - and then having to change the tube, hoping it doesn't re-puncture, all the while freezing your ** off? And probably in the dark too. And even then, when you get home, having to replace the tyre in any case."

Compared to the price of a new tyre I know what my answer would be. (I should probaby add that tyres in general are more susceptible in thev walls, which would sway me even more.)

Congratulations for keeping your cool by the way. Your logic seems totally sound in terms of this guy being a psycho but very often adrenaline wins hands-down over rationality.