South Park, Islamic fundies and the chain of offense

The last published offense was caused by South Park to the Islam by displaying a bear suit allegedly stuffed with (invisible under the suit) Mohammed. And by laughing at people who get offended by this, pretty innocent joke.

Apparently you can't get away these days with laughing at people who are offended by even a derivative insult like this one.

Thus, after some hesitation, I came up with a following question: is it permissible to laugh at people that are offended by laughing at people who are offended by presentation of an object (allegedly) containing the prophet?

And if not, is it permissible to laugh at people who are are offended by laughing at people who are offended by laughing at people who are offended by presentation of an object (allegedly) containing the prophet?

And if the answer is negative again, is it permissible to... OK, you get the drift, I believe. When, in short, laughing at someone in this chain becomes permissible?

And, not to get away from the issue, but to present a different angle: isn't any depiction of any object potentially offensive to the kind of people who participate in the chain described above? Take, for instance, this one:

On one hand, you will surely say, we have here a pretty innocent depiction of a regular (albeit somewhat notorious) can of tomato soup. On the other, can we really be sure that the designer of the can didn't maliciously and insultingly put inside you know whom? Think about the potential offense caused by this act.

And this was just one of a myriad examples of offensive stuff. So, I suggest, we better start eliminating all and any of potentially... what the heck, let's fess up - practically offensive pictures of offensive objects that may... what the heck, that do contain prophet Mohammad. And then the offensive objects themselves. And then... you see it already.

And we better start now, I say.