All those crazy mothering hormones at work. My geese are starting to ramp up breeding behaviors here, so I'll no doubt be in the same boat you're in soon.
Sorry about your Curley. I hope maybe you'll get some of his kids this season!
They do indeed nest dump, and it's very frustrating when trying to let them set naturally. The problem you run into is once a bird starts setting, she may be booted off her nest by someone else wanting that spot. Another egg gets laid, broody birds resumes her spot, and now you've got eggs at...