"Is this lift going up?"
No, what do you think those pointy things on the front are for? Let me tell you: they're ARROWS, amazingly useful things really, that tell you which direction a lift is moving in, although - here's the really clever bit - the arrows themselves don't actually move.

"Sorry, I'm being lazy"
Yes, quite staggeringly lazy. Just how long did you wait for this lift to take you down one floor?

"Woops, sorry, pressed the wrong button"
Mmm, twice. Feeling a little indecisive are we? Now we have to stop at two floors for no reason at all. Except to have the "is this lift going up" conversation with various people, as outlined above.

"Room for a little one?"
No.