My friend has a lovely little dog, around 18 months old. He is a bit anxious and reactive but very sociable with humans.
When people visit her house he's so happy, until they leave, then he gets almost hysterical. Fussing around their feet, untying shoelaces and unfortunately on 2 occasions now has nipped and once bitten through a shoe.
I think she should just put him in the garden before people leave as clearly he finds it very stressful. She insists she can train him out of it, with limited success so far.
Any ideas from experienced dog owners.