"I know those guns, and they aren't native to your ship, they were scavenged, I sincerely doubt they were integrated to ship in such a way that an integral system to survival would be retroactively linked through." He bites his tongue on the rest of it, knows that he's buzzing enough that it would be all too easy to escalate again if he argued.

John's reasoning is less aggressive, more reasonable and he really should keep his mouth shut. Yelling at people who had the ability to hold his life in their hands wasn't always courageous but stupid more often than not.