True story
My daughter worked at B&H in manhattan.
One day after she came home from work she
Tells me , Ta I saw someone wearing tfillin in the late afternoon. She wanted to know how someone can wear it so late.
I told her it must have a chassidesh man putting on רבינו תם תפילין.
She said ” no it was a Lubavitcher ”
I told her that is the worst thing you can say to a Lubavitcher, I always tell this story to Lubavitchers.