In his memoir, Bill Gates reveals how co-founder Paul Allen influenced his early experimentation with drugs and alcohol, including LSD and marijuana. Gates also recounts Steve Jobs' suggestion to try hallucinogens for product appeal, a notion he ultimately rejected. Despite these youthful explorations, Gates went on to co-found Microsoft and achieve billionaire status.

Source: Bill Gates on co-founder Paul Allen: ‘He was a problem’; got him drunk, gave him marijuana