It's none of my business."
"She got what she deserved."
"That's got nothing to do with me."
"How could you do this to me?"
"It's not for me to judge." *
"I only did it once."
"This is all your fault!"
"Just let it slide."
"There's no use trying to change the system, it's just too strong."
"Nobody else is doing anything about it, why should I?"
"I might get into trouble."
"Don't make waves."
"Nobody ever gives me a break."
* as a way to shirk personal responsibility.