LOL, no, nothing so nefarious.
“Bump For Later”...:)
Reminds me of when I was in the US Navy back in the Seventies, and some toilet door artist wrote “B.O.C” on the inside of the door.
Some other guy came in after the fact and wrote “Brothers Of Communism” (with the letters of each word descending under each top letter.)
Our division heads had to have a talk with the sailors under them to discuss subversive organizations...:)
I kid you not!
LOL, it’s probably only gotten worse unless you’re an Army Major who has SOI on his business cards.