I have 22 frames from which I just extracted honey. In the past I have set them out to "let the bees clean them up". I've been told that that encourages robbing. I have 2 strongish hives that I wouldn't think would let some thief through their gates. My options that I'm weighing are:
1) Set them out and let the bees clean them as I have in the past
2) Add them to the hives in a super on top and let the bees "clean them" from within the hive. I don't really know if they would do that but it seems like it would work
If it wouldn't encourage bad behavior I'd just as soon set the frames out for them to go to town on. Any strong opinions either way?