Flat above me is up for sale

Just looked out my window and saw one of those posts advertising property for sale. The flat directly above me I think. I assume it is - I'll find out when I go outside and look up at their window to see if there is any for sale signs in it. Someone was trying keys in MY door the other day and when I went to the door they asked if this was the flat for sale. I assumed they were trying to break in and just using that as an excuse so I attacked them (better rephrase that for legal reasons), I defended my property with a baseball bat. Damn - it appears as though they were telling the truth. Should I own up - I also need the space in the freezer they're taking up.