Phrenology is a lost art, and I believe we as a family should try to rejuvenate it. For instance, can we know something about Joey's personality just by evaluating the menacing brow and Amazonian hairline? I think yes -- one could know immediately his tendencies to a) remain mysteriously locked in his room for an unnatural length of time, b) wear his underwear so that they ride unnaturally high, and c) consistently put the garbage cans where Vin doesn't want them.
Or look at Steve's head. The shape just screams sopresatta. And not in a nice way, either.
I'll be studying this more and will share my insights as they strike me.