I could say lots about this, but Mys, you just about said it all for me.........

'Cantankerous old Git !':smt042

If it were me I would have bagged his dogs' poo when he was out of the picture and on his return, presented it to him, saying...

"I'm just being neighbourly and the last time you were here, you dropped this"

Yes the self righteous are usually never so snowy white as they make out.