To further expand on Goku's views on killing, he murdered his own brother within a single episode, but gave Frieza 5 episode's worth of second, third, and forty-fifth chances. Also I vote Goku for world's shittiest father. Also why the fuck didn't they put Korin in the hyperbolic time chamber to grow senzu beans every now and then. Despite all this, though, Dragon Ball Z is literally my favorite thing ever. Loved it as a kid, love it now. It even inspired me to start going to the gym and training hard to be healthier.