So - this is how is goes down here at dinner time (far more often than I would like to admit)...
please sit down
um, excuse me, you have cutlery, can you use it please?
yes, you can have a drink, once you have eaten some dinner
please sit down, don't eat standing up
ok, so, you have a mouth full, please chew everything up before you talk
the stool, yes? please don't swing on it, just sit
if you are still eating, sit.....on your bottom......on the chair
No kid - dead set - just about e.v.e.r.y n.i.g.h.t
(and yes, when I get to the fifth "sit down", I have been known to jump up with a hearty "BINGO!)