Small doses would be best for during the day. See how he does if you go out for 1/2 an hour, then an hour, then maybe a couple hours. Eventually, work up to all day. Rocco wasn't out at night until 12 months, and then successfully during the day at between 13-14 months. I think if I'm not around he just sleeps. The only time he gets into anything is when I'm there to catch him.