how do you get gum out of your hair ? cancer .
Your joke about a devastating disease like Cancer is really disturbing.
ha ha ha just joking cancer isn't a joke!
You should try to sympathize more with people suffering from devastating diseases like cancer, so that you understand what they're going through before you make inane comments like that.  Empathy is important because it helps us understand how others are feeling so we can respond appropriately to the situation.