Runaway Brain/Fridge

"Minnie: Go get him, Mickey! Rip his ears off!"
 * Fridge Logic: Why does Minnie need a bikini top when she literally dosen't have breasts? Or is this a subtle nod to her earliest appearances (with the odd exception of Plane Crazy) having her redundantly wear a bra?
 * Fridge Horror: It's one thing to have Mickey's brain shaped like his, but having it actually extend to his ears?