The problem is that people paint him as a dog. This is wrong for many reasons. First, a dog is almost the worst thing in a Muslim religion, second Muslims don't depict prophets and such. That's why they get mad when we disrespect their religion and culture.
I'm not making fun of their religion bro. I'm making the point that Christians endure the same ridicule as Muslims only Christians don't have an 11th century response to said ridicule.
Oh and P.S. to you. If you saw an image of Mohammed with a gun and a bottle of wine how would you respond? I like my way better than than terrorizing people over it.