The employee was correct.
Your attitude explains why you don't own the company.
Well, I'm not all that fond of making Pizza Pies anyway.
Of course the employee was correct in saying he should be fired. However, IF I were his boss, I'd consider re-hiring him and asking him to make sure it didn't happen again. I mean it's not like the guy spit on someones food, is it? Do you fire people because they make one minor error?
As I suggested, I think Tom Mohaghan would have re-hired him.