That was the best OotS I've seen in a while. It was awesome.
And I love the little throw-away joke of the guards dragging away a bound and gagged Zz'ditri (sp?) upside down and far away... Right before Roy gets his plan. Awesome.
Considering he has a higher HD, more likely a better con score due to min-maxing, and DR shaving some damage off each hit he took, compared to all the damage roy took, there is no possible way that came even close to killing Thog. I do, however, think it's too heavy for him to pull himself out from, especially fatigued, so he's effectively pinned. ("Roy wins by pinfall"?)
I'm hoping the next strip is Roy just hanging out next to the rubble in a lawn chair for hours so the encounter doesn't technically "end" and Thog's stuck being fatigued. I <3 metagaming humor.