This would be an awesome feature. Rub yourself with killed zombies to lower the sensitivity of the stealth bar. (Use rotten flesh for 15min of undercover action)Wouldn't it be the opposite? Wouldn't you blend in more if you started to stink like garbage, sort of smelling like the background. Wouldn't you be more noticable if you were out in the world smelling all soapy and clean. Isn't that the reason you always see people in shows rubbing zombie guts all over themselves so they don't smell "like humans"