One day, Kermit Jagger goes into a bank because he needs a loan. He asks the teller and is directed to Ms. Patty Wick. He tells Ms. Wick that he needs a loan. She tells him (rather haughtily) that he needs some sort of collateral because they don't go loaning frogs money every day.
So, Kermit reaches into his bag and hands Ms. Wick a small glass elephant. "What is this?" she asks. "We can't give you a loan using *this* as collateral!" Kermit tells Ms. Wick to go talk to the bank manger.
So, Ms. Wick goes to the manager and asks him why she should take the glass elephant as collateral. The manager replies......
"It's a knicknack, Patty Wick. Give the frog a loan. His old man's a Rolling Stone."