It is a characteristic of someone obsessed with a particular vice to ignore words of caution in its regard.
For bad habits have an abiding power to consume the soul so that it is blind to the danger they pose.
Someone who has a problem with chastity might like to point crooked fingers of shame on others for appearing to be unchaste.
But when it comes to controlling his disordered passion for food, he won't be able to stop his habitual self-satisfaction.
Sometimes, he wears his inability to control his appetite as a badge of honor, making it plain for all to see.
In this way he calls down upon himself the infamy of his own making.