I realize that there was very recently a character in that same Boba Fett costume, but that is a different character. I should have changed him to have a licensed properties skin tone instead of standard Lego yellow, but just thought of that while finishing this up. Alas, alack. Just go with it, would you?
Those lines must only apply while they're around characters from this realm, as a lot of what they've just said was never even remotely in the movies! :D
I've not yet decided if it's just their "face for the public" or their "policy for crazy people" that they only speak in Fett quotes. Still, it would be really off-putting and thereby kind of effective for pacification with little effort.
Definitely a good way to keep stupid questions to a minimum.