I know you're going to say it is a mulberry-- but my wife is quite
sure it isn't.

She saw it today at a patient's house. [she's a traveling nurse].

She says the top branches were way too high for her to reach and the
lady said she used to keep it trimmed but hasn't been well enough to
keep it contained recently.

Looks like a tree, not a bush. There are no thorns. Berries are
tasty & look like blackberries. Leaves are like oak leaves.

Zone 5ish in New York. [Schenectady county]

We have a black mulberry & I showed her a branch. Nope-- the leaves
are wrong, and the berries aren't quite right.

Any thoughts?

Thanks,
Jim