Goldilocks sits in Mama and Papa bears' chairs, but does not break them:
After she'd eaten the three bears' breakfasts she decided she was feeling a little tired. So, she walked into the living room where she saw three chairs. Goldilocks sat in the first chair to rest her feet.
"This chair is too big!" she exclaimed.
So she sat in the second chair.
"This chair is too big, too!" she whined.
Later, when the bears come home, they somehow discover someone had been sitting in the chairs:
"Someone's been sitting in my chair," growled the Papa bear.
"Someone's been sitting in my chair," said the Mama bear.
What did Mama and Papa bear see that led them to believe someone had been sitting in their chairs?