If the internet is good for anything, it's good for testing people's patience. And much like David Thorne, the person behind E-mails From An A-hole knows just how to do it.

The premise is simple: respond to an online classified ad and try whatever is likely to get a rise out of the person who posted it. This can mean anything from making outlandish demands: requesting a refrigerator be carried up 65 flights of stairs, to making yourself impossibly hard to reach via phone.

Either way, this dude gets results. Angry, angry results.

Here's a small sampling: