It's irresponsible to overindulge in snacks.
Vince broke up with his girlfriend, is very depressed, and could use some comfort in his life.
Vince wants to eat.
Vince allows himself a few cookies during lunch time to cheer himself up.
Vince buys some boxes of chocolates and cookies and snacks on them for a few hours.
Vince maintains control of his weight and feels better for it, improving his emotional recovery.
Vince begins to gain weight and his health declines.