Citation needed since I've got no fucking clue how roller coasters work, but as wholesome as the scene of Chris managing to fit in was, didn't the [third green] light go back off as soon as he got cleared? They focused on the fact it lit up beforehand, so I'm assuming that checks if the seat's secured.
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In a way it's kinda ironic that the camera zooms in as the guy says "you're safe". How do these work, would he still be good to go? If not, I wonder if nobody noticed, they went "eh fuck it it'll look wholesome", or TLC got involved.