"Back when he’d lived with his mom up on Floor 41, Lyle had used old-fashioned antiseptic deodorants. Lyle had wised up about a lot of things once he’d escaped his mom’s condo. Nowadays, Lyle used a gel roll-on of skin-friendly bacteria that greedily devoured human sweat and exuded as their metabolic by-product a pleasantly harmless reek rather like ripe bananas. Life was a lot easier when you came to proper terms with your microscopic flora." - Bicycle Repairman by Bruce Sterling