baravara: clean-shaven head
chisvo: shaving blade
mano: brilliance. cleverness
Do you honestly think it is wise to upset the owner of the shaving blade when you know you always need to shave your head?
Literally, the proverb questions the wisdom of a clean-shaven headed person who upsets the lender of the shaving blade.
One is cautioned against improperly treating those they depend on or derive benefit from, for doing so is to risk losing those benefits altogether.