Hence why he don't take on his human appearance often, since he can't do cute toaster things anymore.
Toaster is a toaster...regardless of what non-toaster form he takes on.

Toaster: *laying back on desk, nuzzling Yui's midsection...as Daichi finally comes in* "Kyuuuu, kyuuuuuu--ah?! [b]IS THAT FUC%IN' DAICHI, THAT BORDERLINE MAILMAN, WORTHLESS--?!"[/b] *pounces off desk and tackles the guy, going for his jugular*
Aram: *knocks before entering* "Hello, I saw the health inspec--oh?" *sees man nomming on Daichi's neck...from the angle he is standing at, it looks sexual. Looks at Yui and points at the two on the ground* "Uhhmmm...? Headmistress, I don't think you should be here--I mean, should I come back at a better time...?" @_@
Daichi: "Ah! AHHHNNNN~!"
Toaster: B:< <(omnomnom~)