related, somewhat:
i work at a place where doors are opened for me from a control room and i have to say, " clear" when i am completely through the door so that it can be safely shut. I usually thank the controller after i shout clear.
walked into the grocery store the other day after work and shouted "clear, thank you"

i work at a place where doors are opened for me from a control room and i have to say, " clear" when i am completely through the door so that it can be safely shut. I usually thank the controller after i shout clear.
walked into the grocery store the other day after work and shouted "clear, thank you"