Dear Team Leader,

I am NOT working my tail off so you can sit at your desk and peruse a jewelry-making catalog on the clock. When you divided the work, I got almost everything that involves a lot of follow-up and you got all the easy-peasy stuff. I need the job, so I'm going to grit my teeth and ignore it, but I want you to know I'm not happy about it.

Thank you,
Your Team Member