mrsfran
Slightly less bulbous
Two episodes of Tales of the Unexpected... to a lesser extent, the one where the man eats too much Royal Jelly and turns into a bee.
But the one that really scared me involved a man who feigns being dead to get out of prison in a coffin - making a deal with the coffin-maker to bury him together with the next inmate who dies at the jail. The coffin-maker is then to come and dig him up later after the funeral and release him from the coffin - leaving just the actual dead inmate inside. It is all going really well until the funeral is finished and the man gets out his lighter to see (out of curiosity) with whom he has been buried and sees the coffin maker lying next to him. The camera pans back as you hear the man scream.
I must have been really quite young when I saw that but it has stuck with me ever since.
I never saw that, but just reading it makes me shudder.