Henry is a very determined jumper-upper. We've worked very hard on it at home, and he now rarely jumps up on any of us. When he does we turn and step away and he quickly sits his butt back down. When anyone comes into the house we do the same. Butt down to say hello.
However, he is still jumping up on people he meets on on our walks. In fact, it's got worse. If anyone just makes eye contact he takes it as an invitation to jump up in greeting. We had a horrible situation the other day in the woods when he met a man wearing cream trousers just after Henry had been in a black sticky mud puddle... The man was VERY angry and yelled at Henry and waved his arms at him which of course made it much worse.
The problem is that about 50% of the time he gets positive reinforcement from the person he has jumped on, and it happens too fast for me to ask them not to encourage him. I try to minimise his chances of doing it in the first place, whistling him back, using distraction, sometimes a sharp ah-ah will stop him before he starts and the he gets rewarded for not jumping. But it's happening often enough to be a problem, and he seems to be doing it even more in the past few weeks.
Any suggestions or tips from COLers on this one?