When Michael arrived at the Compound following Vito's shooting, he advised Sonny to "wait" before declaring war on Tattaglia and Solozzo. But, after visiting the hospital, finding no bodyguards for Vito, and having his jaw broken by McCluskey, he changed his tune: "You can't wait," and volunteered to kill both. Sonny jocularly accused Michael of taking " very, very personal," but Michael replied, deadly serious, that "It's not personal, Sonny. It's strictly business." End of discussion.

Do you think Michael's change of mind was personal? Or business?