Right im having a problem with my cats at night They have started running round the house at night like its a playground. Diezel thinks its funny to start knocking everything off the kitchen side and roll around the floor playing with it The others then join in .... Then they play chase As you can imagine at 3am i want to sleep Mum said i should shut them out at night but i have never done this before. They pretty much come and go as they please. We are talking about 6 cats. The oldest is 6 and the youngest is 2. Any ideas???