Oh yes, Genji is certainly one to take in everything at once. McCree's arm remains his hostage as he investigates it, rubbing a bit of grime out of a piston.

"No, you need to clean this. If you will not do it I will do it for you." He says determinedly, making it clear it's not up for argument. At least, his limb is released, albeit reluctantly. Genji has become particularly fastidious, and knowing McCree is walking around with what he would consider an absolute mess is very apparently irking him.

"Come, walk with me. We have so much to catch up on. What have you been doing besides growing a beard and losing your limbs?"