Toilets and You

I am to make a sign for church toilet door. Where it's a nice enough door, but not the usual sliding or open directly door.

The sign is to tell people to 'push to open' and 'pull to close'. The door has been pulled and pushed out of it's railing since we installed a nice new door.

I wanted to use the toilet yesterday afternoon and I think someone urinated all over the floor, since it stank really bad.

I shook my head to myself and wondered why people would do such a thing - in church.

I have a good mind to put up a sign that says:

Love thy neighbour as yourself. Keep the toilet clean

Can I do that?