I am interested in a good solution to this problem also. One of my boys is almost 2 and started doing this recently. Maybe he was too young last summer to realize what a motorcycle is, but this summer, he is going AFTER motorcycles when I walk them. Trying to get them and barking his head off! And people on bikes! Then he gets himself soooo riled up that he starts to go after any moving vehicle! I dont know why he is starting this now! But I hear you, im scared for him! I never EVER let him out without a leash on but Im afraid if he ever gets out one day he'll get hit bc he chases cars! UGH!
__________________ “Petting, scratching, and cuddling a dog could be as soothing to the mind and heart as deep meditation and almost as good for the soul as prayer.” ― Dean Koontz |