Hi there. My little guy is just coming up to a year now, and was (and still is at heart) at true escape artist. I, like you, live on a busy street and was so worried that he would run out and get hit. Although I really did not want to so it, I purchased an inside containment sytem from smart pets.com. This devise comes with a special collar and a censor devise that puts out a signal in a 10 foot radious. If the little guy goes within that area, the devise sends a pulse to the collar and administers a slight electric shock. Since I purchased this device (around the holidays) my little one has not escaped since, which is amzing seeing as he would get out almost daily. I is very effective and now he will not even go into the hallway even when he is not wearing the collar. I was concerned about hurting him (as he is only 8 lbs). The first time that he was 'shocked' he really yelped and ran and hid under the sofa for the rest of the night. After that it didn't seem to really bother him and he is fine now. Good luck with this, I know how worring it is and how upsetting it is to think about hurting your little friend, but I truely believe that this system has helped to make life much safer.
__________________ xoxo Nia and Coy-Coy  |