I had read the original "Credit Card Prank", and laughed. I was funny, and I almost wanted to try it myself, but when you have a family, lawsuits and jailtime are things you don't want to risk for fun anymore.
Now, I recently came across the new "Credit Card Prank II", which actually took it to a new level. Not "to the limit", but further.
PS. He also has a bunch of other pranks, including "The Turnpike Prank," where he tries to get a free trip through the toll.