Sleezebag Boyfriends you LOVE to HATE

HEY Y'ALL!
Im working on a script containing a sleezebag/abusive boyfriend of the protagonists mother. I was hoping to get some inspration from other films. Any ideas?

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[punches him in the face, grabs him and points his gun right at his throat] I never said anything about the FBI. She's my partner, ese. And if anything happens to her, I will find you and I will kill you. I won't think twice. Come here, look in my eyes. [pushes barrel of the gun into his mouth and cocks it] Look at my face. If anything happens to her, I will kill you. This is between you and me, and nobody sees, nobody knows.

Radio Flyer comes to mind

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"Get Busy Livin or Get Busy Dyin"

this boy's life

boys on the side

--give me a few mins to think and i will be back with more suggestions! but if u want real life, i got some good stories about my ex!!

I have tons of ideas... none from films.

hahaha well i mean that can help to, if youre willing to disclose some. I just want to accurately portray an abusive boyfriend talking to the young son of his girlfriend. and him talking to her as well. I don't want a caricature.

i don't know about abusive boyfriends...but my mom's ex hit on a 17 year old girl that he hired to work for him

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Sometimes one must be sacrificed.

Why is the boyfriend abusive?
What happened in his past that makes him abusive?
Did he have abusive parents?
Does he have a mental illness? If so, what kind?
Does anyone else in his family have a mental illness?
Was he abused as a child? By whom?