Was it the Martian Man Hunter?
Those are a strict one per household GWP. It's just how it is with those mini figures.
You should have asked for Ewar's Acro Fighter as a replacement.
I have yet to spill one personally, seen it happen with the kiddies and moms though.
I will offer this though, I was goofing around near a Duplo station and those bricks went all over the floor.