Piccolo and Goku in “Unfinished Business”

Piccolo

[after Majin Buu decimates another city] He's even worse without Babidi.

Hmm...I guess it's just in his nature to cause destruction. It's probably the only thing he's ever known to do.

Piccolo

No. Don't go making excuses for him. There's no reason to demolish planets regardless of personality defects.