…where some one gets into a fight and their face is slammed into a telephone pole covered in rusty staples.

Something like this:

Staples embedded in telephone pole, The Marigny, New Orleans, by Clayton Cubitt.

It seems like such a brutal and painful thing to do to some one. Along the lines of “biting the curb”.

Even if it was accidental, it would leave an incredible scar. Dozens of tiny lines, criss-crossing a face.

The perfect thing for a villain or anti-hero.