Kindness has neither a head nor a tail. Kindness stands alone. An act of generosity performed as atonement for some previous transgression is not kindness. Offering help for the favor of help returned barely rises above bribery.
Have I been kind?
Thinking about this, I realize that I have, at times, been profoundly kind to animals.
My kindness toward fellow humans, on the other hand, has been rare. In those interactions I am often expecting something in return. So far as atonement—nearly everything I do swims in that direction.