You shouldn't be selfish.
Gordon is out at an all you can eat buffet eating lunch one day.
Gordon wants to each chicken.
Gordon takes a piece of chicken, some noodles and a side salad.
Gordon takes all the chicken on the platter and puts it onto his plate.
Gordon eats the food on his plate and his hunger is satisfied.
Gordon eats all the food on his plate and immediately gets a severe stomach ache.