Well, frankly, they get the most exposition, so I can see why banging heads against them is a no-no. But still, they should really take it in stride.
Like my grandfather used to say, if you make insulting into an artform and someone gets pissed, then they're getting pissed off at art, which just shows how much of a douche they are.
Best way to fight someone like that is doing so in the shade. As many of you are probably aware, stepping into enemy territory with guns blazing is just asking to step on landmines. Don't. Contrary to what Sylvester Stallone may have taught us in our infancy, that's not a winning strategy.