I let my husband know this includes: telling him my plan and items I plan to use, I take (or should take) my PRN, if I'm sitting there laughing and joking about it I'm sent to the room and given melitonin, while my husband waits with me until I pass out. While I'm sleeping all those things are hid from me.

Less serious times (he has these too) when it's more of them and less planned then the conversation goes more like: Privately

"Hey I have x ways to hurt (you/me/son)"
"you need to remember as pretty as you think it is it'll be different then in your head (person) will get hurt/killed it's not like your cartoon version. Miguel will be scared of you if you do anything to him. I can't keep you out of jail or the hospital if you do anything. Do you understand?"
"yes...."
" Do you need PRN? You should probably write to T"
Or
Me arguing that he's wrong = PRN given melitonin, while my husband waits with me until I pass out. While I'm sleeping all those things are hid from me.

Spitting PRN at him or refusing = call to T a phone assessment, convincing me to either take PRN or H will have to take me to crisis center.

When I feel well after when I feel well enough I have to write to T.
I know that doesn't help but that's what we do. I'd try to sleep through the weekend if you can go to Psych ER. Because you don't have as large of a safety net.