Sorry but I don’t know what Jack is on about?
Regardless of a joke’s light or dark nature, a joke is only a joke *if the other party finds it funny*.
If you’ve made the same joke 3 times and each time the person you’re making the joke to is panic-stricken, feels uncomfortable and wants you to stop, THAT IS NOT A JOKE. And you bloody well know it’s not.
It’s like those infuriating idiots who pull your chair from out under you, knowing it’ll risk injury and knowing you won’t be finding it funny, and then trying to act like your reaction is an exaggeration because “it was only a joke!”. It’s not a joke and it’s not a prank if no one is laughing or encouraging it. Eff off.