A San Francisco punk silenced by Spock's nerve pinch in 1986, who decades later is seen on a Los Angeles bus in 2024 and turns his music down the moment he is asked.
The punk on the bus is a comic bit player in Star Trek IV: The Voyage Home, played by Kirk Thatcher, an associate producer on the film who also wrote and performed the song blasting from the character's stereo.
In 1986 Kirk and Spock board a city bus on their way to find the whales. A young man with a mohawk refuses Kirk's request to turn off his music and makes a rude gesture, so Spock quietly renders him unconscious with a Vulcan nerve pinch, to the applause of the other passengers.
Thatcher returned to the role in the second-season Picard episode Watcher, set in 2024. An older version of the same man is playing the same sort of music on a bus when Seven of Nine and Raffi are aboard. Asked to switch it off, he apologises at once and rubs his neck.