I had to take our cat into the garden shed for some reason, and my son said the door was stuck and that we'd need to remove the latch and a few other bits before it would open and close, so we did that. We left the bits just outside the door. But the door now had large gaps in it because of the removal, and I figured the cat would get out. So I tried to get hold of the bits with a view to re-attaching some of them in the hope of sealing off the gaps, but my son's girlfriend came up and took them away. I yelled at her to bring them back, which I think she eventually did. I saw another animal in the shed - possibly a dog - that was a very bright, unusual colour, as if it wasn't real.
It's a somewhat recurrent theme in my dreams - doors or windows having gaps through which somebody might get.