I have a pair of those heavy roughout leather gloves; that broody hen growls every time I lift the nest roof, and tries to eat you up if you attempt to move her barehanded. I know she's stealing eggs; haven't gotten any since she started. I'll mark several, them keep removing unmarked ones. If she's the one that hatched out 2 last year, I could set off a bomb under her & blow her to bits before she'd move on her own, other than to drink, poop, & steal eggs.
Update...she has 8 under her; 2 days worth + 2. That's enough for now. Should they all hatch, that'd make 20 mouths to feed, at least 2 being roosters; don't need/want that many....hello CL