A possible concise summary is:
Jeffy and Junior find a dinosaur egg in their backyard and hatch it. Jeffy names the dinosaur Booger and tries to keep it as a pet. Mario tries to get rid of Booger by hiring Charlie, calling a paleontologist, and calling a crocodile hunter. Jeffy gets upset when he learns that Booger is being turned into shoes, so Mario gets him back. Jeffy is allowed to keep Booger as long as he behaves.
Some possible facts extracted from the text are:
1. Jeffy and Junior found a dinosaur egg in their backyard and hatched it.
2. Jeffy named the dinosaur Booger and wanted to keep it as a pet.
3. Mario tried to get rid of the dinosaur by hiring Charlie to pretend to be its father and dressing up as its mother.
4. Mario called a crocodile hunter to take the dinosaur away, but he mistook it for a croc shoe.
5. Jeffy was upset when he learned that his dinosaur was taken away and Mario had to get it back.