Discarding Race Cards

[DiscDude]

So we've been playing Munchkin Bites! and love the game. It gets heated at times, but we enjoy the competitiveness this game allows for. We had a situation tonight where someone (werewolf race) was going to beat a monster and win the game but during combat a rival played the Holy Water Trap card resulting in non-humans losing a level. Since the player in battle was level 9 and about to win this obviously would postpone the game by pushing him back to level 8 and then up to nine again after beating said monster. My question is could the level 9 player have won by simply removing his race? The rule book says "You can discard a race card at any". So could he have just said "I don't want to be a werewolf, discard his race card and be a human, safe from the holy water? Thanks for any thoughts in advanced!