To be honest I would never let the other guy park there - even when you are not expecting anyone. That kind of behaviour needs to be nipped in the bud quickly.
I would see if you can get a sign up that says no parking. Perahsp see how far you can go with regards to clamping (maybe just give the warning but not actually clamp?)
I would see if you can get a sign up that says no parking. Perahsp see how far you can go with regards to clamping (maybe just give the warning but not actually clamp?)