Today, the immortal Chuck Berry turns 90 and there are no shortage of great stories about the legendary, pioneer rock and roller. But none ring quite as loud as that time he knocked Keith Richards into next week after the Rolling Stones guitarist was spotted touching his guitar. 

“His guitar was laid out in his case and I said, ‘Oh come on Keith, just a touch,'” Richards said during a 2014 appearance on The Tonight Show Starring Jimmy Fallon promoting his children’s book Gus & Me. “He walked in and goes, ‘Nobody touches my guitar.'”

“And that was one of his biggest hits,” Richards joked. 

Watch below and remember to never, ever touch Chuck Berry’s guitar.