I found it one of the funnier pieces of slapstick in this pantomime.
If the person who is wearing the ghoul mask hams it up, it will make the game even funnier.
It might be all the funnier to you if no one else but your group of friends gets it.
The story is laughable, and the voice-overs and character acting is even funnier.
Even if someone getting injured is only a remote possibility, find a more appropriate, and funnier, prank to pull.