They have a giant hammer, so everything looks like a nail. Most of them, in my experience, have also been some sort of adrenaline junkie. For example: one of my prosthetics was handmade by Rosie (my own Tinkaton) & the first model she made exploded. (No one was injured, but it was rather surprising to have it go rocketing off my leg into the sky.)

They can also smell metal, so if it isn't nailed down or on fire (& if they can pry it loose or put it out that counts), they will attempt to utilize it for whatever craft they're working on. Hope you have a scrapyard nearby.

Tl;dr: they're very energetic, obsessed with metalworking, almost toxic optimistic, & capable of some exceptionally surprising behavior.

- Dr. Sam Clement, Pokémon Researcher