Grateful Dead Joke

A Grateful Dead song started playing in the car while my dad was driving. The informant (my dad) is WB, I am PH.

WB: Ugh, the Grateful Dead

PH: Want me to skip it?

WB: No, that’s okay. Did I ever tell you my joke about the Grateful Dead?

PH: I think so, but tell me again

WB: What’d the Grateful Dead fan say when he got out of rehab?

PH: What?

WB: [said in a lower, “hippie” voice that my dad uses when imitating his hippie, drug addict cousin] “What’s this terrible noise stuck in my head, man?”