Sigh. SIL strikes again.
This last week, her two middle kids went to camp. Apparently SIL has no sense of direction/never checks a map, because when she and BIL dropped them off (in a small city about 90 minutes from their house, a very easy drive AND SIL has a smartphone with GPS), BIL drifted off to sleep and woke up just in time to see SIL obliviously drive past the last exit into the city. So, worried she would get lost, he told her that he would pick the kids up.
All week SIL posted on Facebook how much she missed her kids and how excited she was that they'd be home on Sunday.
BIL works as TON (SIL is a SAHM); an 80-hour workweek is light for him. Sunday is the only day of the week he gets off. (He worked a 60 hour week last month when we saw him and DH joked about how much "free time" BIL would have now.) FIL kindly offered to pick up the kids, and to take the oldest with him (there's an attraction in the pickup city that the oldest kid has never seen but would absolutely love.) BIL, relieved, accepted the offer.
I got a call from FIL on Saturday evening. He had tried to call DH but DH had left his phone at my sister's house (of course, the one time.) FIL was passing through my hometown, where we were that weekend, and wanted to know if we could have dinner (he was on his way out of town that that point, otherwise we would have invited him over.)
Apparently SIL just assumed pickup was on Sunday (because dropoff was on Sunday) and never really checked the date. FIL was about to leave his house on Saturday to hang out with his brother when he got a phone call from a panicked camp leader. Nobody had been there to pick up the kids!! They had been unable to reach SIL at the Original Stop. The bus had another stop to make (in my hometown, another hour away) so a counselor who lived in My Hometown offered to look after the kids until their parent/guardian could be found.
So because SIL couldn't be bothered to check dates, and was unavailable (which I find odd, she's home all the time and is always on her cell phone), FIL had to drop everything and drive 2 1/2 hours one way to pick up his grandkids (7 and 11) who were scared and confused about why nobody had been there to pick them up, and he didn't get to take the oldest kid to the attraction.
That night, SIL posted on Facebook about what a "relaxing night" she'd had. No mention of the mix-up, or a public thanking of FIL, or anything (she did have a large homage post about her own deceased father, though.) If it had been me, I would have at least taken FIL and MIL out for dinner on Sunday. Nope. They didn't even bother to stop over and say hi. (Did I mention that they only live about a mile apart?)
SIL makes my eye twitch.