Yesterday I get to work and say "Hi" to the morning custodian. He politely says "Hello" back to me and then tells me to wait. He goes into the supply closet and brings out a can of air freshener/deodorizer and hands it to me and says, "Here, I thought you could use this."
Yeah, I am going to go ahead and take this as a "I-was-cleaning-your-class-and-noticed-you-didn't-have-any" kind of message as opposed to a "Heather smells" or "Your-classroom-stinks-to-holy-heaven" kind of message.