We only decided to use the dog collars on our awning posts, after seeing a poor man with his wingebago awning unrolling, in peak hour traffic on Pennant Hills Road in Sydney.(a 6 laned, horror stretch) in peak hour He needed two lanes and a lot of patience to get the whole thing back together. We couldn't stop to help, because of the total mess that the traffic was causing. It only takes one mishap before you decide to act!