Map of fire ant infestation:
These tiny insects build sometimes huge mounds and will swarm and bite anything that disturbs them. I've already had several bites this year--Ow! Ow! Ow!
Ortho Fire Ant Killer has a fantastic ad campaign (click here to listen)--"Because killing fire ants shouldn't be a full time job. Even if it is pretty fun." This gives you some idea of the attitude southerners have toward fire ants.
Here's a photo of a small mound in my yard:
Okay, I'm done with my fire ant rant -- for now.