At 3 p.m., at the neighborhood courier station, a girl in pajamas took a small cardboard box, opened it on the spot, and inside was a pink silicone object.

Her face instantly turned red, and she quickly shoved it back into the box, then looked up and glared at me fiercely.
I hurriedly lowered my head, pretending to look for my own package.
Five minutes later, I ran into her again in the elevator.
The cardboard box in her hand was already wrapped in three layers of black trash bags, like wrapping a corpse.
As the elevator doors were about to close, a man rushed in, stepping on the trash bag with one foot, making a "puff" sound.
The girl screamed, "Don’t step on it! That’s for my cat’s teething stick!"
The man quickly apologized, and the girl hugged the bag to her chest, her eyes avoiding eye contact.
I noticed her phone screen was lit up, with a search bar that read "How to tell real xx sticks from fake."
The elevator reached the seventh floor, and she ran out.
At that moment, as the doors closed, the man suddenly whispered, "Cats use that for teething? Her house must have an alligator."
I suddenly remembered she pressed the seventh floor, but there’s only a pet hospital on the seventh floor.
If it were you, would you pretend not to see, or would you expose it right then and there?