A few more details here:
I've had him since Jan '07. They had $99 balls marked "Extra Fancy" and $69 balls marked "Fancy" and I was told that the difference in price and marking what due to the fact that the x-tra fancies came from a breeder that they knew well while the others were not. I had set a budget for myself and, honestly, Snakey caught my eye from the very beginning and he looked as fancy as any of them in there. So, Snakey was a bargain bin buy. Great disposition, strong eater, grows fast, etc. The attendant estimated that Snakey was born (hatched?) roughly Sept. '06.
He's has always yawned alot. The mouth rubbing thing, however, has developed over time since I've owned him. I would say that it started a few months ago and, for some time, he would only do a few times right after feeding. Recently, say last month, the frequency and intensity of the running has increased alot and can be seen whenever he's out and about. Otherwise, he's still the great, healthy snake he's always been.
Does this timeline match that of an RI?