I tamed a semi feral cat a couple of years ago. She's now about 7. She's not totally house trained and will pee & spray (like a tom) around the house. She sometimes uses the trays, sometimes not. She pees in the grass if she goes outside; just plonks down not bothering with the flower beds. The world is her toilet. All fine vet wise, she is just used to peeing anywhere her heart desires. The only room she doesn't pee in and will use the tray in is her bedroom. I'd like to be able to leave her roam about the place at night, but can't. Does anyone have any advice or tips on how to house train a previously semi feral cat?