Stringy little alien things from beyond the stars. Sailed into the system, smashed an empire, freed the Grineer, maybe lost a war. Hard to tell.

[He's just going to ignore that statement of principle, and plow straight on to the more important subject: defending his honor against unfounded accusations of being a doctor.]

A scientist. [He's not some sawbones! Technically, though, he does saw bones on occasion. But only for good reasons.] Specialized in curing a disease no one's got here, except me. So hobbies aren't high on my to-do list.