This isn't related to the elevators, but we had a maid once who smelled really bad when she showed up at 8am. She cleaned the upstairs first, then came downstairs. I went upstairs after she was gone for the day and my bathroom REEKED of BO. It was horrible and stayed for 2 days. Needless to say we let her go.
Motherhood...The hardest job you'll ever love! : )