A husband says to his wife that he is sorry for being insensitive. He says he has been under a lot of pressure lately. A mom says tells her kids she shouldn't have yelled at them, but she is just very tired. These "little" sins are justified because of some extenuating circumstance or unfair treatment by someone else. After a while these sins aren't even seen as sins. They are conveniently placed in the category of being human.
Well, that is true as far as it goes. Being human means many things:
A person who is made in the image of God. A person who has great value because he is an image-bearer of God. A person who, with Adam, has embraced sin and tarnished that image. A person who was born in sin. A person who is guilty and unfit to stand before the holy God. A person who is in need of the redeeming grace of Jesus Christ.
So, yes we are all human and all sinners. Therefore, being human is not an excuse, it is a death sentence.
One "little" sin betrays a heart of darkness. One "little" sin shows rebellion towards the holiness of God. One "little" sin leads to an acceptable excuse for that sin. Suppose Jesus had made the excuse of being tired and hungry when he was tempted to sin because he was only human. One "little" sin on his part would have lead to the immediate destruction of the human race.