Keep Clear of Me, I Am On Fire.

Do boats still use nautical flags? I hope so, because I think they'd come in handy in other facets as well. You could hang them outside your house or apartment to let passersby know what's going down inside. Or put them on shirts to send that subliminal message to the bar crowd. Better yet, flashcards. Most of the flags could be particularly appropriate, in the right situation…

(P): The Blue Peter: All aboard, the vessel is about to set sail.

(U): You are sailing into danger.

(J): Keep clear of me, I am on fire. (K): I wish to communicate with you.

(Q): My vessel is healthy and I require free pratique. (Z): I require a tug. (Y): I am dragging my anchor.
(L): You should stop immediately.