In the third book The Last Straw, Greg finds ripoff ads in the back of a comic book, and buys the products. He thinks about suing the people who made them, but he realises lawyers cost money and is broke.
Ads in comic book
- - The "X-ray" goggles: were fake and just blurred his vision.
- - The hovercraft: required tons of expensive materials and only came with the blue prints.
- - The "Print Your Own Money" device: turned out to be a cheap magic trick that required the person to use their own money.
- - The "Throw Your Voice" ad: came with simple instructions that did not work either.