O_O for here or to go?

SO TODAY i went to mcdonald's for a hot fudge sundae and the girl's like for here or to go? so i was liek....uh for here then after tat i was like hey ivan u worked here before, what's the difference between a for here and to go sundae? and he's like O.o guess she's new LOL
then andrew le goes up to another cashier and is like, hey what's the difference between a for here and to go sundae? nd she's like LOL i dunno anyways that was funny
LOL
and no i still get a lid when it's a for here sundae so that's not the difference :@