Sadie almost got her head knocked off by a flying hub cap one time as we walked down a wide side walk. Some woman swerved too close too the curb (for no reason) and almost killed my dog. Sadie was on leash, we were as far from the street as possible, and I was closer to the street than she, but still this hub cap missed her by inches only.

Sadie is often off leash, supervised, in safe areas. I spent a lot of time training her to obey my commands despite temptation by a cat or squirrel. Because of that she won't run if the leash breaks or someone else leaves a door open. I feel she is more safe since she knows how to behave off leash.