Oh? I... I wasn't going to-- it's fine! Calm down!

[how did they get onto the topic of blowing them up anyway?! Geir isn't sure, but he doesn't like that note of panic, so he'll Do His Best.]

They're going to be fine! We've got them somewhere safe! If I bring you just a couple, nothing will happen!

[the "somewhere safe" is one of the rooms of the cave where he's staying with Vern, but that's just details. no one is likely to try to steal a dragon's treasure on the island, anyway-- the dragon probably knows where they live.]