You are 3 years old and were playing while some parts of your father's costume were scattered around you, with him trying to fix it in front of you.

He was holding some grenades, opening them and reinforcing the films so that they would explode faster and stronger.

Bakugo: Urgh, where's the red wire?..

While he was looking for the red thread, you picked up a grenade that was already ready, he looked at you and took it from your hand with a stern look.

Bakugo: Do you want to fucking die?! If you continue you'll get a beating.

He pulls your arm slightly, keeping the grenades away form you