> This worked for me with a Bearded Collie bitch. Not because of lunging, but because she was petrified of lorries.
Lorries and buses are fairly similar in some ways. He didn't have an issue with them because we live on a main road. I used to carry him to the nearest bus stop most nights and sit there with him watching the traffic and people go by. Buses can be as scary as lorries, with the air-brakes hissing etc. but after seeing buses pull in and people getting on & off, lots of noise, hissing brakes (the ones we have here also hiss when the doors open as they lower themselves to the pavement automatically). He was taken on buses from an early age and learned to love them, which he had to as I don't drive. So lorries are another type of bus to him, bigger, bit more noisy, and people don't go on them. Trains were just another sort of bus - another noisy thing we go on, and sit on, with other people. He was six months before his first real trip in a car but by then, quite clearly, a car was just a small bus with only two people in it :)