MOSQUITOS. I'm allergic to them. I didn't know it for a long time -- I just thought it was normal to get a big lump, about an inch in diameter, from every bite. So last night I was talking to another one of the tenants at the place I'm staying, and I knew my calves were being bitten, but I figured it was minimal. I was wrong. The final count: 27 bites on the left leg, 19 on the right. Lesson: don't go outside in Columbus at dusk. Unless you like mosquito bites.