I got tired of my old avatar in which I looked so dang grouchy. No, I wasn't on the verge of having a tremendous bowel movement; I'd tried to look "arrogant" and instead just looked stuck-up, which I assure you is as little like me as I can think of.
Anyway, now I've got this new one, which I actually took on request for Melissa as she was curious to see what I looked like without my traditional mustache:
Rather better, no? :P
Siiiigh, so painfully obvious trying to look like 'House' in that other picture. Just BE YOURSELF!
... I think you know what "being myself" would lead to.