When my old kitty, Ichiro, came to live with us he was indoor/outdoor. He was a stray that just showed up at our house once and never left (we tried to find his home, but no one claimed him), but we were happy to have him (even though my mom is EXTREMELY alergic to cats). She was constantly taking alergy pills But we just fell in love with the sweet kitty. Since he was so accoustomed to being outside we let him out whenever he pleased. Unfortunatly, after only 9 months of living with us he was hit by a car and killed just a few house down the street. And our street is NOT at all a busy road. It was very sad, I wish I would've kept him indoor, but he just loved going out so much... If I ever got another cat it would be indoor only.