So my in-laws have departed along with half the MFA Flock, and I am very relieved. My kids never saw my stepson awake (they peeked in on him sleeping before Hotter and I were up and all commented that he looks a lot like his dad but they either didn't notice the spools in his ears or didn't realize those things were IN his ears because they didn't comment on that, and the tattoos were covered) (WHEW!), there was only one screaming match between Hotter and The Wrath (which took place after the boys had gone to school), and nobody said anything unpleasant to me so I'm going to call that a victorious in-law experience.
The landlord (who is generally a good one but whose spouse is occasionally...difficult...so it could have gone either way) is going to replace the water heater without making us wait several days as they have done for repairs in the past, so that's good.
But apparently the people at my job noticed how little they need me (I called in today after a night of fitful, nightmares-about-stepson-repercussions filled sleep to supervise any potential meeting between the four stepbrothers, because honestly after last night I didn't trust Hotter not to TOTALLY FUCKING BUNGLE IT if they had questions about the tattoos, piercings, etc.) and I got a call from Temp Agency #1 a little while ago to let me know that I've been laid off effective immediately.