I once seen a guy who road his bike while his dog ran along. I thought "How cool is that", when I got dog I gave it a try, figure the odds on this working out for me. Got about half a block when the dog decided to change directions....right across my front tire, pulled my hand holding the lease and I burned into the pavement like a lawn dart. Really lucky though, all I got was some road rash. Man was I pissed, but felt bad for the dog because he was tied to this tangled mess of me and my bike, he was freaking out big time.