The scapecock does not need to be smart; he merely needs be the least liked friend in a group of people, willing to fulfill any task the alpha males bequeath.
Alpha Male - "Yo! Cheeze-whiz, you take point. Let me know when you're done romancing her seven kingdoms."
Scapecock - "Aw thanks man! I won't let you down!"
Scenario 2 (On the way to the colloquial rapee):
Alpha Male - "Oh hey way to go buddy! I think you deserve firsties on this one!"
Scapecock - "Sick! Thanks man!"