A deep trash can with some meat glued to the bottom would probably work, with the drone tied to something near the open top. It would fall on its side when set

A deep trash can with some meat glued to the bottom would probably work, with the drone tied to something near the open top. It would fall on its side when set down, and trap the dog when lifted. Assuming there's a way to lift it quickly enough. I suppose dropping a trap, and coming back later is a better idea, but it would use a lot of the 20kg weight budget.