Anonymous donor drops of $8,000 in cash donation box at Pasadena Humane Society & SPCA

The Pasadena Humane Society & SPCA received an unexpected hefty donation today, and officials at the animal-rescue agency have no idea where it came from.

Somebody walked into the society's Neely Cat Center and dropped $8,000 into a collection box. The donation came in the form of a pile of crisp-looking $20 bills.

According to the Humane Society, the donation was made completely anonymously. There was no accompanying note or any other identifying information.

"This $8,000 donation is going to go a long way to provide help, food and shelter for the critters that we have in our care," Humane Society spokeswoman Jamie Holeman told the Pasadena Star News.

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