L'habit ne fait pas le moine

Thinking the explosion was an accident, Goku rescues the boy from the burning room. Alone in his new room, the boy is revealed to be possessed by Baby. Baby then possesses a doctor and gets Trunks alone. He attacks Trunks, but Goku and Pan arrive in time to save him. They sensed Baby's energy on the planet, and they knew that he would be after them, so they have been on their guard the entire time. They attempt to destroy Baby, but he catches Trunks off guard and possesses him. As Trunks, he is about to blast Goku at point-blank range, when Trunks takes control and redirects the blast. Because Baby is in a weak state, Trunks is able to force him from his body. Baby escapes and possess a random woman on the street. Not knowing which of the thousands of people Baby is in, the three take off in their ship. (Source: Wikipedia)