KRYTEN: And if you still want to be alive when there is only 78 more days to go, I suggest you do not blow your nose.
LISTER: Do you mind if I ask why?
KRYTEN: Well, let's forego the noise and the revolting burbling sound, and go straight to the really gross part, when you always, and I mean always, having blown your nose have to open up your handkerchief and take a look at the contents. I mean, why? What do you expect to see in there? A Turner seascape, perhaps? The face of the Madonna? An undiscovered Shakespearian sonnet?
It's dialog like this that makes Red Dwarf one of the funniest shows ever. I <3 british comedy.