Ants and Electroncis
I've heard before that ants are occasionally attracted to electromagnetic emissions, I believe someone had a while ant colony move into his powerbook or some such. Plus ants are pretty conductive, and when they die they release a chemical that signals all the other ants in the area to come help out.
I've heard of traffic signals and things getting totally filled to the breaking point with larger ants.
This just sounds like no fun at all...