Place it right after the fake injury is shown, then follow it with the Ba Dum Tss Drum Sting for the punchline and a funny laugh once the joke has landed, keeping the doctor call as the setup rather than the ending.
关于此声音
This is a short spoken clip of about eight and a half seconds built around the repeated call Doctor Doctor, delivered in a urgent, pleading voice that sounds like someone asking for help. It feels funny and slightly frantic, turning a pretend emergency into a quick joke that lands best when the trouble is clearly not serious at all.