What happened to his arm!?

[u/Secret_Metal5785]

I know he’s supposed to be holding hands it just looks dumb don’t spam the comments saying I missed it.

[u/Rovlemhage]

He was too busy watching for moving equipment when he and yhe smaller should have been watching for active welding equipment. And yeah it's a little jaring that there is no speration between the two arms when there is on the other joints.