This is from Wikipedia, figured I'd share it with you guys:
"However, there is some question of whether the fish are a good choice for the typical hobbyist. While they are not aggressive carnivores like the piranha, their crushing jaw system, used primarily for eating seeds and nuts, can be hazardous. One toddler needed surgery after a pacu (misreported as a piranha) bit her finger at Edinburgh Butterfly and Insect World in Scotland. Commenting on the incident, Deep Sea World zoological manager Matthew Kane warned, "Pacus will eat anything, even childrens wiggling fingers."
Another such incident occurred when a 60 cm (24-inch) Pacu (named Pacu) jumped out of his tank in Fort Worth, TX and bit the nose off of his owner. The nose was later reattached, sans left nostril."
"However, there is some question of whether the fish are a good choice for the typical hobbyist. While they are not aggressive carnivores like the piranha, their crushing jaw system, used primarily for eating seeds and nuts, can be hazardous. One toddler needed surgery after a pacu (misreported as a piranha) bit her finger at Edinburgh Butterfly and Insect World in Scotland. Commenting on the incident, Deep Sea World zoological manager Matthew Kane warned, "Pacus will eat anything, even childrens wiggling fingers."
Another such incident occurred when a 60 cm (24-inch) Pacu (named Pacu) jumped out of his tank in Fort Worth, TX and bit the nose off of his owner. The nose was later reattached, sans left nostril."
LOL.