Blackmail

Gohan rescues a baby dino from a circus, but Videl thinks he's stealing it, and confronts him! Gohan wants to avoid fighting her, and then the dino's parents come! Gohan gets cut, before beating the dad dino, then sending the pair home with the mother. Videl sees that Gohan has a cut in the same place, and puts 2 and 2 together to figure out that Gohan is Saiyaman. She says she will not tell if Gohan competes in the World Martial Arts Tournament. Her other condition was that he teach her to fly.