Problems with unexchangable animal-specific beverages

A moose is asleep. He is dreaming of moose drinks.
A goose is asleep. He is dreaming of goose drinks.
That's well and good when a moose dreams of moose juice.
And nothing goes wrong when a goose dreams of goose juice.
But it isn't too good when a moose and a goose....
start dreaming they're drinking the other ones juice.
Moose juice, not goose juice, is juice for a moose.
And goose juice, not moose juice, is juice for a goose.
So, when goose gets a mouthful of juices of moose's...
and moose gets a mouthful of juices of goose's....
they always fall out of their beds screaming screams...
SO, i'm warning you, now! Never drink in your dreams.