thank you all if that's what you have when the male cat is still young and not sterilized when approaching or is in heat is very bad, but good knowing and take steps, opened an account to be putting savings sterilization of cat in 3 or 4 years (I will not be so bad with as it is), and close the door when I'm not in the room.
again and I will buy another plane this time airfix new mold that is fairly good at first sight