I understand the MIL issues too. My family in law had no boudaries like that. My MIL used to come into the room shouting(she shouted a lot) first thing in the morning knocking as she came in. I tell you what stopped them dead from ever doing it again was when MIL came in shouting at us and I said 'I'm sorry, I need to get up and put some clothes on' and she didn't do it again lol. It was priceless! It was like a huge 'ohhhhhhh' moment.
I bet Cornwall is just lovely with the warm, gorgeous weather!
