A friend of mine has a rescue dog with terrible recall.
Our local park has a fenced-off children's play area.
On weekend mornings when the play area is empty, my friend lets her dog off-lead in the play area.
She says she's not U because there's no-one there; she always puts the dog on the lead and takes her off if a child comes to play in the play area; she picks up poo; and doesn't let her dog climb on the equipment. She says having a dog running around in there is no worse than the rats, foxes, mice, cats etc. that roam the park at night.
So, do you think she's being U?