I am thinking about maybe scratching the glass on the man's glasses.
What would possess you to tear up a man's glasses?
I just want him to pay attention to me in all honesty.
The man's glasses are his personal property and you tearing his glasses up is wrong. Find another way to get the man's attention.
You're too boring.
While you may view this as something exciting, most people would see it as you just bullying some random person and think less of you. Do you realize how destroying someone's glasses would affect them? Try spending a day wearing glasses that make everything blurry, because that's what you're inflicting on him.