The human animal is not designed to be content. Of course not. Unless, of course, you're a very computer-literate dog that has somehow managed to sign up with an internet access provider.
Dogs are generally content because they're stupid, and they can lick themselves.
If I could lick myself, I'd be set. Unfortunately, I haven't been blessed with the dexterity or the required length of tongue. So I, like the rest of you, wallow in misery and pain, waiting for something or someone to come along and make the world a wonderful, beautiful place where I am adored by all and am able to spend the better part of my day exacting revenge on those who irritate me. Of course, deep down inside, we all know that this will never happen, which makes it all the more difficult to continue on, to suffer through an unending string of days waiting to die. You will never be famous.