landing without permission...
When I was doing my flight training (a long time ago!), we were told 'land anywhere in the UK with the land-owners permission (and as a professional courtesy, inform Plod)'.
I have since been told that this is not (no longer) the case. You can land anywhere, and as long as you leave immediately when asked (and have not damaged anything or broken any other rules) - you are perfectly legal.
Would love to know if this is now the case (as it seems strange).
Safe flights, Sam.