The problem is that what people consider funny today is all about pushing the envelope and, in many instances, pushing people's buttons. It's about uncovering sensitivities and then making fun of them. Therefore some jokes can really be hit-and-miss just because of the mood people are in at the moment or what there sensitivities are. Some people will laugh off their sensitivities sometimes, but other times poking fun at them is too much for them to bear.