O . o
Not all that uncommon. Have you ever seen a bad enough sun burn that they peel? Some get off on being peeled, while other enjoy the peeling... the rest of us just look on in indifference, revulsion, or pitty.
NGL I think this one is rather tame. But the pimple poppers just plain weird me out.
That was what I came here to ask as well. Sure I could somewhat see it being rude to always be sampling people's thoughts, but he was sent here on a mission to sus out a malignant. So he should be checking individuals out as he meets them.
OTOH it's hard for the MC to be blindsided by a antagonists if he was actually doing his job by constantly on the lookout.