With the last encounter with that ball of red light all the people who witnessed it were shaken. "That thing is dangerous for all I know," Gohan said. Vegeta was reading a paper or rather pretending to for his ears were the most alert.
All of them were at his house to discuss the matter. "It controlled Trunks and turned him evil," Goku said, "You remember, the Ball came out of him as if it was his spirit."
"Most probably it was. It would have had entered his body and then would have had turned into his own spirit. Don't you remember even a thing when it was inside you?" Piccolo asked.