The cupboard on my side of the building on the ground floor is locked.
Ah, but what floor are you on, could be cut between floors, the way I see it, all of those should be locked and if you have a site supervisor only they should have a key to them.
Its the same with the cupboard with the mains in it, that should be checked, like I said that doesn't look safe at all, Health and Safety would through a fit if they saw that, to me it looks like a hack job, but that just me.
Paul