You can't help but feel sorry for Scavenger. He wants so badly to be liked and needed, to feel like a useful and valuable member of his team. His self-esteem is so low he'd do just about anything to get the approval of the others, but his simpering, doting eagerness to please just reinforces the other Decepticons' opinion of him as a worthless loser. He's constantly excavating everywhere he goes in the attempt to find something of worth and prove his value, but it's invariably just some piece of garbage or scrap he excitedly finds, and that just sets him up for more derision and mockery.