I'll list out what I've been told (and took at face value, until now)
For the past month or so he has been telling me they are sending people home because they weren't needed or there were too many people in.
When he has come home after going to work he tells me they have told him to go home but that he'll be paid holiday pay. He makes all the right noises about how its inconvenient and that they should let people know in advance rather than waiting until they arrive then sending them home.
He deliberately lead me to believe that these people, including him, are not given a choice and it's as simple as "you have to go"
Tonight he called me 15 mins after his shift started, sighing and huffing, saying he has been 'sent home' again alongside a couple of others - one of which is really pissed off as he has to travel a long way in on the bus.
He gets home, still acting inconvenienced.
We have a chat about it and I suggest (for about the fourth time) that he moves onto days, because his last workplace actually got rid of nights eventually after the store went into overdrive about cutting hours and saving money. He doesn't want to.
I say I'm worried he might end up losing his job because it doesn't seem very reassuring that so many people are being ordered to go home on a regular basis.
I tell him I'm going to ask for advice on mumsnet and he then says that the store is having to drop 260 something hours per week from the night shift.
Only when I relay there replies to him does he admit that he isn't being ordered home and that he does have a choice. He gets a bit defensive.
I asked why he chose to come home if he had an option and he said because he would be sat around with next to nothing to do.
He then says it's because he didn't want to stay if they didn't want him there, basically because he was given the option to go he felt uncomfortable saying no because they'd clearly prefer he goes home, among others.
He has form for lying and being deliberately misleading so this isn't the first time.