Er, omg that is so sad
I get so much flak when I walk Teddy on a leash in order to control the approach of other dogs because people in England constantly bombard me with, 'Why don't you let him run off the leash?'
It's dangerous enough for these little dogs to be around bigger dogs on a leash much less when you have no control over the situation. Poor little guy and his owners must be devastated.