They were always a little suspicious when they saw all the cleaning utilities, but I assured them that the janitor's tools were just being temporarily stored here while the actual janitor's closet was being remodeled. I used my smooth, confident "airport professional" voice, a voice that calmly said, We're airport staff, we know what we're doing, please don't be another hysterical civilian for my co-workers and I to groan about on our lunch break. Relax. They swallowed it hook line and sinker, every single time.