Oh jeez, that sounds EXACTLY like Blaze!!! He goes bike riding with me a lot, and sometimes lags behind, although most of the time he keeps pace, and then if I say, "Come on Blaze!" he takes off...or if we are turning on the road to go home, I'll say, "Race ya Buddy!" and he takes off...leaving me in the dust practically! I love it though, aren't BCs just awesome??!!