Human Moms are Scariest

Bulma and Chi-Chi are both human moms to powerful half-Saiyan children (Trunks and Goten, respectively), but they can terrify Piccolo, another super-powered alien, into going lenient on their tired children. It makes sense since, as Vegeta reveals in Dragon Ball Super, Saiyans are naturally attracted to strong women. Piccolo puts it best: "Never train children when their mothers are around. It's always trouble."

Example of:
Almighty Mom