I dumped weed killer on the university quad
Why would you do something that could make a lot of people sick?
I laughed because the impact was insane.
Dumping herbicide in a public place is wrong, and hardly a laughing matter. You could make a lot of people sick and kill people's pets.
What's wrong with that?
If you don't care about hurting people then you have serious issues you need to address with a therapist. Having no empathy for others is a sign of a mental disorder.