[ Peter takes the handkerchief and uses it to wipe Fushi's nose. There ya go, buddy. ]

I used to. About twenty years ago, I got a galactic standard shot—it's a kind of medicine—so that I wouldn't get any of the more common diseases in space. There's still a few out there, but I'll still sneeze if I get some of this in my nose.

[ He wiggles his nose to make a point. Anyone would sneeze if they had pollen directly in their nostrils, Fushi. Oh, maybe they don't know? ]

See, our noses are real sensitive. If we get dust or pollen in deep enough, our bodies tell us to sneeze so that that stuff doesn't get into our throats.