It's only my opinion but I have seen H do it with his eldest daughter. He'd say he'd be there but he'd do a no show. I don't tell my kids when their dad is coming because he hasn't turned up a couple of times. Like you Inpain I had to deal with it! Not doing it anymore as I'm not the one not turning up!
Thanks Rouky. What do you say to them if they ask though? Or don't they ask. I have tried just saying that I don't know a few times but S11 is very insistent and asks so much that I end up telling him S is currently saying to me that he is never speaking to H again if he doesn't come round today.