What do you consider abuse?

Based on a conversation that was just struck up.

It could be mental, physical, verbal, whatever. What do you consider abuse?

Personally I find the following behaviors/qualities abusive:

-Controlling behavior

-Blackmail

-Being violent

-Withholding affection as a punishment

-Manipulation

-Exploding temper

-Yelling (its abusive to me because I let everyone know that I have anxiety and loud noises trigger it because of past experiences. When someone yells at me, they are ignoring my comfort level and using it as a way to get me to back down.)

-Secluding someone from friends and family without valid reason

I'm sure there's more I'll think of.