I'll just throw two more out...

So do you ever have a word that for whatever reason, your brain farts and fails to say when its at the tip of your tongue?

I'm not talking about strict pronunciation either. And I don't have recent instances of this. (One I believe I've already mentioned before, which was the most recent case of this happening.)

But I think my most frequent failing is "Specific". Couldn't really explain why either. But my brain used to never like vocalizing that word without freezing up. 

[i]*Shrugs*[/i]

And also I'm considered a Monkey according to the Chinese Zodiac. Despite that I was born in January (and the year is normally for The Rooster) but apparently according to the exact time I was born qualifies me to be something else. (and after looking at the Wiki, it also confirms this.)