I have a bantam cochin that appears to be a serial brooder - but it only takes a few days and nights in her special broody-breaking cage to get over it. We let her out to run around at least once a day, for as long as she doesn't start obsessing over getting back into the coop, then back in she goes. The 3rd or 4th morning we let her out to test her and she just acts "normal", case closed. Her eggs start up again in about a week. Her pattern so far, which I'm hoping changes as the weather turns into fall, is to go broody again in about a month. She's also one year old, so I'm hoping maybe she won't be so broody as she ages??? I think there's quite a bit of variety among chickens who tend to brood - how often, what it takes to break them, etc. - so you'll have to wait and see. And work on getting the husband to see their charms regardless of laying output!