The Dumb Ass Manager

I have found it's best to just avoid the manager as much as I can He is such an annoying wimpy dumb ass!
I write memos to him and leave them in his office with the files while he is out. I only talk to him if I absolutely have to. It's just better this way. If I try to talk to him he lies and then forgets
he lied to you last time. I just want to punch him in the face.
I also send e-mails to him if I have a question. I have to put on the e-mail it's for his viewing only snd should not be sent to anyone else. He sent an e- mail to a co-worker when I made a complaint about her.
It's hard to understand how he every became a manager and how he stays one