I seem to be having a better time than most this week.
I'm sorry to hear the situations posters are facing.
DS did a total "collapse" after his last exam on the Friday, by which I mean he went to his bedroom and pretty much stayed there.
He was happy enough to "present" himself for food, but otherwise we had a good 72 hours of him doing nothing apart from sleeping/watching movies/playing video games.
Thankfully on Monday evening he "emerged" from his bedroom and started to crack on with revision again.
We didn't pester him (I wanted him to have some downtime) but I've never seen him crash out before for so long.
He's going to my parents tomorrow (his choice) for a couple of days. DH and I are at work having taken the first few days of half term on annual leave.
My DF is a biologist and given that's one of the next exams he faces he's said he'd like to revise with his GF and be able to ask questions and frankly he knows he'll be treated like a prince there rather than home alone here.
He's in very good hands (my parents are brilliant with him) but I'm going to miss him as I've hardly seen him at all between his bedroom self exile and my work which feels a bit selfish on my part 
Just realised I started and ended with a
- not sure what that says!