I'll come and pick them up soon if no one has beaten me to it.
We could have a toilet key. The knife worked well until the vacant/engaged thingy got worn down. I don't know how well disabled people could manage a key, but in the rare cases that they want to use the loo, someone could unlock the door first. And a Yale type lock that locked itself would keep the door locked by default.
With fewer people using it, it should be easier to keep it stocked with soap and paper. It's likely that there was no toilet roll last night.
On a similar theme, is it just me who gets pissed off when not-on-shift volunteers put their crap in the volunteer cupboard? I don't say anything because I'm not sure what the policy is, and I think that people should know how annoying it is without being told. I'd be happy to make a poster.