Other stories of the drink's origins feature apocryphal businessmen, including an American diplomat who served in Europe during Prohibition. Although said to be a teetotaller, he often had to attend cocktail receptions, where he'd ask for a martini glass filled with cold water, garnished with a small onion so he could distinguish his drink from others. A similar story involves an investment banker named Gibson, who would take his clients out for the proverbial three-martini business lunches. He purportedly had the bartender serve him cold water so he could stay sober while his clients became intoxicated; the cocktail onion garnish served to distinguish his beverage from those of his clients.