My cat is a year and 3 months i just got him nuetered....before nurtering him he nevr like to go outside like when he see the dor he run from it....now i have notice that when he see the door open he walk slow to the door and wants to go out ..... i wonder if it is because he was nurtered or something eles ?? i don't mind him goin out he has all his shots and is due for his yearly shots in sept. but i have notice that he wants to go out mroe now