Another Question about umpire behavior

[FVB_Ryan]

I wonder sometimes on the apropos of a base ump eating and spitting sunflower seeds. I once had the idea "the players do it, why cant I?" But since then I have realized that if I were to take that attitude for many other things, I, as the umpire, would be doing some very inappropriate things. For example, if a player makes a mistake, he may get verbally disgruntled with himself. Clearly, an umpire cannot do the same thing after realizing he kicked a call. At the same time however, being verbally upset at one's self, is not the same as eating sunflower seeds. Any opinions?