One of the perks about working in a research environment is that from time to time I get asked to participate in clinical studies. I decline most of them because I don't really have an interest in having things implanted in me or testing controversial vaccinations with painful side effects. But, every once in a while an "easy money" study comes along. Today was one of those days. It was a study to test a new way to find out if people are allergic to mice. Since I work with mice, I was a good fit because they wanted participants who are regularly exposed to mice.
I just had to have a skin test that would evaluate my allergic response to several things including mice. They also tested certain tree and grass pollens that are common in Middle Tennessee as well as 2 types of mold, dust mites, dogs, cats, and cockroaches (yes cockroaches).
Here's a picture of my arm a few minutes after they started the test.

As it turns out, I am fairly allergic to trees and grass (oak and pecan in particular), somewhat allergic to dogs, mildly allergic to cockroaches (go figure), and slightly sensitive to mice. All in all, it was a very easy way to make some extra cash. Did you know that some people actually make a living being professional lab rats? I guess they're the ones that don't mind having things implanted. I think I'll stick to the skin tests.
