The Self-Writing Diary
A man buys an old leather-bound diary from a thrift shop. When he opens it, the first page reads: Write your darkest secret. Curious, he writes, I stole money from my best friend.
The next morning, the entry is gone. Instead, there’s a new line: He knows.
Panicked, the man burns the diary. Later that day, his best friend knocks on the door, holding the same diary. “You left this at my house,” he says with a grin.