I'd say it depends on why.
Letting them have pizza for breakfast because there's no actual breakfast food in the house is different from letting them have pizza for breakfast because you couldn't care less.
How is awsome and terrible a contradiction? The weekend dad with the drinking problem, the gambler buddies and the stripper girlfriend is also totally awesome in his kids eye but probably quite terrible from the Childrens Protection Service point of view.
If there is only one slice left then obviously you can only eat one slice. Which brings us to how did it get to there's only one slice left? Did you eat it? More than likely, which brings us back to the beginning who can eat just one slice, when not limited by the amount of pizza left? Why do things have to be explained in such detail?
Letting them have pizza for breakfast because there's no actual breakfast food in the house is different from letting them have pizza for breakfast because you couldn't care less.
That's like saying falling off your bike is the same as a head-on car collision