Nothing quite like a four- or five-figure phone bill to break your spirit, and in many circumstances, we can understand why your first reaction after opening such a bill might be "I'll sue the pants off of these people." Of course, contracts are pretty well ironclad thanks to the generations of overpaid lawyers that have perfected them over the years, and generally speaking, you've got to lie in the bed you've made -- but occasionally, a situation develops that's genuinely bogus. This one has been brewing for a while, actually, ever since AT&T and others decided to drop their unlimited data plans down to a 5GB cap: unexpected overage. A buyer of one of those $99 Aspire Ones bundled with an AT&T contract at Radio Shack got a shock of a bill after blowing past her 5GB cap, and while the individual should've certainly done a better job of understanding that the cap existed, shouldn't the carriers be shutting off data by default when you hit 5GB, or after just a very small amount of overage has developed? At any rate, she's suing AT&T and Radio Shack for her troubles -- and it looks like she's seeking class-action status -- so we'd love to see this spur companies into more proactively preventing nasty bills from developing in the first place.