re: Poker & A not so common occurrence (I thought)
There's zero chance I'm folding this here, and here's why: his range is MUCH wider than just 88 and K8.
Most players that are capable of higher than level 1 thinking (may not be many of these in a $4.40 RUSH tourney, but just sayin') will realize than a KK8 flop doesn't connect with very many hands. So this increases the value of pocket pairs, especially 99-QQ and AA, since it's so unlikely for their opponent to have a K. Other more gutsy players will even fight back against the player with initiative with complete air. That is, if a player in late position is making a routine flop c-bet on this type of board, since it's hard to connect on this board, they will often fold to a check-raise.
So, to account for this, let's run our equity against a possible range of Kx, 55-AA (the 55-77 is also meant to account for some of the bluffs we can expect to run into):
ProPokerTools Hold'em Simulation
93,060 trials (Exhaustive)
(70,623 wins, 10,218 ties)
K*, 55-AA 18.62%
(12,219 wins, 10,218 ties)
Knowing this, we are literally throwing away money by folding in these types of spots. Can't argue with concrete numbers (you could even narrow his range further and you can see that you'll pretty much never be an underdog in this spot).