He hadn't done this before. I really didn't put him on QQ-AA, b/c of how most players at this level and site play high PPs. I often see this kind of play with 88-JJ, since these guys hate having to play middle-highish PPs postflop and figure they're a coinflip if they get called. Those hands we dominate in this situation and in all other cases (AK, AQ, etc.) we still want our money in the middle, no?