The San Luis Obispo Blues certainly gave plenty of what its namesake suggests Friday night, dismantling the Humboldt Crabs 13-1 at the Arcata Ball Park.And no Crabbie got it worse than starting pitcher Josh Mollerus.He started off strong, striking out the first two Blues’ batters he faced Friday night before forcing the third Blues batter he saw to ground out and end the inning.Same deal in the second. After walking the first batter he faced Mollerus and the Crabs finished off the frame with …