My husband works away sometimes and plans this for time when his ex would have typically had DSC (13).
Except since he's gotten older he seems to be more regularly just turning up out of the blue whenever he feels like it and to be honest it's starting to piss me off. Not least of all because I'm always the last one to know what's going on.
For example last night, DH is away until Mon. My toddler is with my parents and I was discussing maybe going staying with a friend for the evening to have wine and a takeaway. And then about 5pm as I'm getting ready SS just walks in says he's been at his friend's house round the corner so he thought he'd come here, he'd tried to ring DH to tell him but he wasn't answering. When I said no sorry I'm going out like now so you'll have to go he then couldn't get hold of mum to come and get him either and I ended up having to do a detour to drop him off and just hope she was in (I don't have any contact with her usually) ending up out later than I wanted to be after faffing around.
No one seems arsed this is happening, not DH, not his ex. And I'm just expected to be fine at never knowing when a teenager might just walk through the door and want tea or want dropping off somewhere and screw my own plans. Even if I'd just wanted to lay around on the sofa ffs.
I want to say to DH now that's it, he's to tell SS he needs to sort lifts/collecting from friends houses etc.. with his mum on her days and not just turn up here when he knows his dad isn't here. Especially if he's not even going to tell me first to check I'm actually free.