A good question, and a good assumption besides. Conversations for later, right?

Xavier doesn't know the exact makeup of his saviour - he can hear, in parts, things that suggest some type of non-human origin, but that's hardly relevant right now.

"Oh, yes. Of course, sir." There's no hesitation, and the natural assumption is probably 'whatever freaky thing had him immobile was terrifying', but... Well, it doesn't matter really. "The path is clear and lacks many features, so I do not require optic sensors to follow. Please do watch your step." Those two statements are in complete dissonance, Xavier...