About half way through The Who’s set at Woodstock, Abbie Hoffman stormed the stage, took the mic, and began talking about the imprisonment of John Sinclair. Pete Townshend began shouting obscenities at him and hit him with his guitar.

The footage of the incident has never been released. Supposedly, the cameraman was changing tape reels the time of the incident. This footage captures the aftermath of the incident. Towards the beginning of the footage, you can briefly see Abbie Hoffman getting up and walking offstage.