I've been to 2 groomers that put my baby's top knot in too tight. So tight that she couldn't close her eyes! Her eyes were extra wide open!
They also, put the rubber band too close to the skin and the skin was stretched.
Just thought I would throw this out since we were talking about top knots.
I remember as a little girl when I wore my hair in a pony tail. I was so glad to take it down at night. I wonder if that contributed to my life-long misery with migraines???
I imagine dogs can also be uncomfortable when their top knot is too tight.