Not an open-ended question. Locking.
Hide under a cardboard box and slowly inch your way across the broadcast frame and out of the studio
Is there a printer in the room? Print off a photo of one of your least favorite coworkers, use it as a paper mask, leave.
Any studio I’m familiar with has an airlock specifically so you can enter and leave during the broadcast.
This is a small studio in an office that has an insulated door, but is located next to the kitchen, so if I open the door it will make noise.
The suido is not fully working at the moment so we use a Logitech meetup unit with a sensitive mic at the moment.
We have a full setup with a good camera , wireless mics, video switcher, lights, but that is not working amazingly at the moment.
Sounds like you could also ruin that recording with a loud fart. Or laugh, or cough. But I’d go for a fart - would be a fantastic way to ruin a scene.