That which is a violation of the law, causing injury to the public ...not just as a whole, but to any single individual, is defined as a crime.

So, it could be said that each of us commit crimes each day against each other ...if we are so fragile to say that our opinions could be damaging to another.  

It seems to be increasingly true that we offend someone at every juncture of our existence. 

But, none of us could then say we are exempt.

As the old saying goes, who can point a finger at someone else, without also admitting that three fingers are at the same time pointing back at us.

And we even extend the definition beyond that of causing injury to the public ...stating that there are those who commit crimes against nature.