She does it so often disguised as Fluttershy that the Spa Ponies start to give the actual Fluttershy Dash's usual treatment when she shows up.



And even though the dye wears off in the jacuzzi, the wig is constantly falling off, and the Spa Ponies keep starting to call her by her actual name before catching themselves and saying "Fluttershy", Dash still believes she's getting away with it.