How do I break the broom in Untitled Goose Game?

In Untitled Goose Game, the second area (with the shops) has the To-Do list item to break the broom that the shopkeeper is holding. How do I do that? I've tried dragging it underneath the garage door area and then trying to close it on it, but that didn't work. I've also dragged it over to the phone booth and tried to close that door on it, but that didn't work either.

How do I break the broom?

When the shopkeeper who owns the broom has spotted you in her shop area, she will try to use it to shoo you away. When that happens, you can grab the bottom of the broom while it's still in her hands. If you move away from her while doing this, the broom will break.