Long, face obscuring bangs are totally not Reiner's style.

How about in the future Marco and Jean actually have the skills to handle guns safely. He grins a little in response to Jean's question. "I wouldn't teach you to shoot without all of that." He nods to the gun. " C'mere, let me start by showing you how to load and unload a gun." He indicates the safety switch. "First of, this is the safety. Always make sure it is on unless you are ready to shoot. Got that?"