Whenever I can... I try to erase the "In" from "Invisible"

  “I’m not invisible.”

 
When I travel through airports, I notice folks who may seem invisible.
 
For example, have you ever paid attention to the attendants who are stationed in airport bathrooms? In the men’s rooms (as I can only speak to this sector), some have a table and mouthwash. Their job is to keep the bathroom they’re assigned to, clean, sanitary, and nice for us to visit for only a few minutes. Can you imagine how nasty an airport bathroom could become in just one day, if these folks were not so strategically positioned?
 
By mentioning this, I’m not trying in any way to diminish anyone’s value, station in life, or contribution to the greater good. Rather, I try to go out of my way to say hello, tell them “Thank you,” or contribute to their tip jars. Their response is often one of amazement that someone noticed they were there.
 
Whenever I can, I try to erase the “in” from “invisible.”