1) Coworker was operator at the fitting room, started noticing a bit of a stank... that steadily grew worse. Finally investigated, found a pile of poop in a dressing room and immediately recalled an older woman leaving the fitting room earlier, looking sweaty and saying "I have to leave, I have to go.."
2) Another coworker wasn't even working when she saw this, but she witnessed an old man being wheeled through the store with his family, and she noticed that he had begun leaving a small trail of pee dribble, and another coworker kept finding droplets, cleaning them with no idea what the source was when she finally told him.
3) Same coworker that found poo also found a pair of worn panties in a pair of women's workout pants in the returns, complete with discharge.