This is like that time when Krillin laid a wreath at the cemetary of Frieza’s minions. He claimed it was just for the members of the Ginyu Force (clean Ginyu myth) but the Namekians are pissed and accusing Krillin of being a fascist sympathizer - most of all Piccolo. Piccolo knows the real reason Krillin shaves his head (he joined the Aryan Brotherhood in prison) so Piccolo isn’t letting this go.