What do you do after a really unhealthy meal?

Just interested in how people think.

Say you’re on a diet, but you gave in to temptation and had a really unhealthy meal. After your plate is empty, how do you feel and what do you do?

a) Sit there feeling awful about yourself.

b) Heave a sigh, let it pass and tell yourself you’ll do better next time.

c) Wait an hour and hit the gym running.

d) Enjoy it to its fullest. Life is too short to count calories all day.

e) Other?