I see your point, playfelt. I am terminating for abusive behaviour at this point, not for the late payments.

Is it reasonable for me to insist that the mom do drop off and pick up for the next two weeks (she stays at home, so she's available for it). I want nothing more to do with the dad. I felt intimidated by his behaviour, and that's a pretty crappy thing to feel in the entryway of your own home, business place or not...