A frog hopped into a bank and hopped up to the desk of Patty Mack, the bank's loan advisor.

The frog asked for a $5,000 loan. Not knowing exactly what to do, Patty Mack had the frog fill out a loan application. Reviewing the application, she noticed the frog listed Mick Jagger as his father.

Further confused, she asked the frog if he had any collateral, whereupon he produced a small, oddly shaped piece of what appeared to be green glass.

Finally she said that she would have to talk to the bank's president, and brought the oddly shaped "collateral" with her.

She told the president about the frog and his application, and said "All he's brought in for collateral is this green thing - I don't have a clue what it's supposed to be!"

After reviewing the loan application and looking at the piece of glass, the bank president said "It's a knick-knack Patty Mack. Give the frog the loan. His old man's a Rolling Stone."