Disney has severe penalties for performers who break character when in costume at one of their theme parks. But those "princesses" and "animals" eventually have to eat like the rest of us. I don't know how strict they were way back when, but from the looks of this picture from 1961, it seems like they ran just as tight a ship. Goofy and that astronaut are gonna have a tough time putting food into their mouths. That, or as BoingBoing points out, those are giveaways that this picture was likely staged. Either way, this is a great piece of Disney history!
How do you think Snow White and Goofy take their coffee?