Possible Clues:

• The insect bucks away
• Bounders seen as worker goes off to match?
• Impalas, e.g.
• A worker runs off when such beasts appear
• The little six-footer runs away with all the bucks
• Worker runs away from these mammals
• The insect makes off with the bucks
• Gazelles, impalas etc
• School opens late for such animals
• Left over