You shouldn't waste food.
Craig is tired of always eating at the same restaurants.
Craig wants to try the new buffet restaurant in town.
Craig is mindful of how much he can eat at the buffet and takes only the amount he knows he can finish.
Craig repeatedly loads his plate with food at the buffet, but then he's too full to finish it all, so he throws the rest out.
Craig is happy that her tried the new buffet restaurant.
Craig feels bad for taking more than he was able to eat and wasting food.