She Quit Laying in the Boxes!

[SKG1121]

My bantam hen had been laying her eggs in the boxes for about a month now but for some reason she decided to stop. I thought maybe the boxes were occupied but she did it even when they were empty. I tried putting her eggs in the boxes and I even tried taking her from where she was laying and putting her in the nest box. Even with the coop closed she still wouldn't lay.
Any ideas? I'm guessing fake eggs won't help.

 

[sumi]

Did something happen to her while she was laying in the box that gave her a fright maybe? Did you clean the boxes and dust for mites?

 

[SKG1121]

So I figured out that my bossy hen will come up and kick her out of the nest box! If I catch her being nasty I'll let the chickens out into the yard and shut the door so she can't bother her, but is there anyway to brake her of this?