Dd ( 4.11) had a friend's daughter sleep last night the friend is 9. As a treat dp bought dd a game of operation. When they went to bed last night we checked all the pieces were there and put it on a high shelf so that dd couldn't reach it and loose the pieces.
The friend who IMO should know better at her age got the game out for them to play but and the they went to sleep with it on the bed it fell off in the night and now three pieces are missing.
I have told them both off and have said that f the pieces are not found before 5pm when dp will take the girl home the game will be thrown away and the girl is not allowed to sleep over for the rest of the summer.
On top of this dd bedroom is a tip and is covered in half eaten sweets and everything is pulled out of the drawers and boxes. I have told them both that they cannot leave the room before it is tidy.