I know some people like that, and I always want to beat the living shit out of them when they say things along those lines. Ultimately my desire to stay out of jail prevails and I don't do it.

If she's learning at the local McDojo she'll just have the illusion of being able to defend herself.

Take martial arts classes yourself.

Explain to her that relationships should be built upon trust, and that you would never beat her. If this fails, employ her new karate chop technique in the making of sandwiches.

Does she also think your daughter's putting alchohol in her tampons..?

Just tell her to shut up, and get back in the kitchen, that'll do the trick! Oh, but be very careful how you ask for your sandwich! You have to say please!! In all seriousness, I would seriously consider marriage counseling....seems like she has some issues that really need worked out......preferably before you get the crap beat outta you :)

DIVORCE HER NOW! It's only gonna get worse.

She should educate herself on the signs of an abuser before jumping to conclusions about everyday aspects of human relationships. If she's losing trust in you due to Gut Feelings, having a frank talk about whatever it is you're doing that she's interpreting as bad would be helpful. Do you clench your fists when you get angry, etc. *sigh* I don't know.

Get a Smith & Wesson

Well now she can defend herself if she gets mugged.