The golden era of comedy has come and gone.
It existed in a culture where people had moral ethics (be it religious or non-religious) and most treated those as they would like to be treated.
Comedians didn't use 4 letter words to shock people, to get laughter. Creativeness, slap stick, falling down was funny. And when that was dried up, along comes the Lenny Bruce type of comedy in the 60's.. Lenny bruce was one of the first to use shock comedy tactics, but then it turned into a political platform for him to defy cultural policy.
Comedians turned to more and more shock to get laughs, still holding to a base of 'daily things we all do' but using more shock tactics and expanding the areas that we, as a society, were willing to accept. Our morals, ethics decayed, and the comedian began to take on a strange new twist with shock.
Today we live in a world where few people have good moral ethics (and no, I'm not talking about religion, I'm talking about 'doing the right thing' type morals) and comedians have to create ways to shock the masses in more creative ways since we, as a culture, are immune to decades of shock-n-awe comedy.
That's why you end up with HazMat comedy like this guy employs.
The end.
