what happens when you make other plans

I have a Friday night off…thanks just the same, but I’d rather not :sad
my kids are here…all 3 of them…because their little worlds got quite a shaking today…
I was training last night/this morning, and I got a call about 6:15am from my ex (which usually means something wrong with the kids)
in a roundabout way, it was…their grandfather, (the exes dad) who’s been staying with them for the last month or so, had stopped breathing, 911 had been called, cops and paramedics all over the place, and my kids woke up to this…
needless to say my boss was very understanding why I was leaving…and even arranged for my shift to be covered tonight so I wouldn’t have to wake the kids to take them to work with me…
he’s got blood clots in his lungs and legs… he’s not breathing on his own…but somehow, when the sedative wears off, he fights to take the tubes out…
my heart hurts for my kids…my oldest is being typically the oldest…holding it all in except to tell me that he’s worried about his grandpa, and you can tell in the way he acts he has the weight of the world on his shoulders….the middle child, my ‘sensitive one’ gets upset over every little thing, from telling him it’s dinner time, to whats on tv…the little guy (OK, he’s really NOT that little *s*) is aware of what’s going on, in his own way, and tells you how upset his is about it before something else grabs his attention…
hes been such a major part of their lives from the beginning, and will (probably) be the first major loss in it…maybe it’s selfish of me, but I’m not sure I’m prepared to help them deal with that