[The dragon reaches out and taps him on the head with a talon and he flinches because of her size, despite the fact that she's being gentle. It's like being patted by Thor or the Hulk. Light touches still bear weight on a normal guy.]

I'm not a scavenger. I'm an engineer. I build things.

[Which totally means he can't be a scavenger. He's productive!]

I don't know that many dragons, but it does seem weird. If they have dragons already, why would they want more? Maybe you can connect to them?