We discovered the hairy poo when my older dog, wrinkles, a char-pei, was a puppy. I cut hair, and i was doing it in my home in the kitchen... wrinkles runs in and devours a mouth full of hair... which was weird and funny until she had to poop and it just wasn't going to happen. Too much hair. We actually had to pin her down and pull it out by hand.
aren't dogs great!