Bill Murray has been known to troll people from time to time, and family is never off-limits.

Bill's brother, Joel, is a devoted Grateful Dead fan. In the early '80s, the Grateful Dead was playing a concert at Madison Square Garden. Bill called Joel and asked if he wanted to go. Fifteen minutes before the show started, the brothers began their walk to MSG on 96th street. Bill suddenly got the urge to have a beer. Joel begrudgingly agreed. After the beer, Bill said he couldn't go to the concert on an empty stomach and knew a good sushi place around the corner. After that, Bill said sake was in order. Finally, the two made it to Madison Square Garden on 33rd Street.

To Joel's shock and disbelief, Bill never even acknowledged the arena; he just continued walking past. Bill and Joel walked the streets of New York for hours while Bill pointed out his favorite architecture and obelisks. The concert was long over when Bill said they should stop by the Blues Bar for a final drink.

Dan Aykroyd and John Belushi owned a late-night blues bar in the city. Bill knocked on the door, and Aykroyd opened it to welcome Bill and Joel. Over Aykroyd's shoulder, Joel could see Bob Weir and the Grateful Dead playing the after-party. Bill had kept his word and got a few laughs at his kid brother's expense.