when it comes to jokes...
i believe that before making one , one that could be offensive, one should first know his audience.
some people even swear at each others mothers and laugh about it, some others fight over it.
its matter of tolerance or stupidity.
like in german, would find a joke over the jews funny, it doesnt matter how funny it is.
humor its a very difficult thing.
if someone slips and falls and you laugh that doesnt mean that u have humor, if you slip and fall and then laugh then indeed you have humor.
and a small trick in case you are in situation where people make jokes about you. usually they make them because they know your reaction.they make them bc they know that you mind. an easy way to get over that situation is you yourself to exagguarate what they make fun of you. then they ll realise that you dont mind, and find someone else to tease