the thing about being mean to somebody is that they have to know you were mean to them. for example if you cheated on your gf and she never finds out, leaves you and goes on with her life. it just means that you look stupid for trying to look mean.
for example the thing about your teacher, how do you know he didnt do the same thing and you touched it with your hands. actually maybe your friends did it too and you held it in your hands. now it went from being mean to make you look like a fool thinking you were mean to somebody when the joke was on you.
semp