WHO'S walking WHOM???
What a casually-observing neighbor will amusedly ask you if da dog dat you're taking for a stroll is enthusiastically pulling you along.
I often run into da classic "WHO'S walking WHOM???" scenareo when helping out my neighbors by leading their eager-to-be-out-and-about dogs around town on a leash, so I always opt for a harness instead of a collar, so dat I don't risk having said forward-tugging canines feel choked and breathless.