What did the blind, dead, crippled, retarded 12 year old get for Christmas? Cancer
This statement sounds pretty messed up if i am being honest.
What's the problem, I'm just joking.
Joking about someone getting cancer is not a very moral thing to do, especially when the person already has other things wrong with them. Even though your intention was to make someone laugh, I hope you understand how this could come across the wrong way.
Look, it was only a joke. No need to be serious.
The joke itself is too serious of a subject matter to make light of. There are plenty of things to make fun of that isn't depressing.