Awright, who's the wag?!?

It's long been customary in the Alerton facility that if you're going to be away during regular work days you leave a Post-It note on your door stating, at a minimum, when you intend to return to the office. I usually leave more but because I had multiple destinations I just left a note saying, "Back 9/23."

When I returned I discovered that somebody had modified my note to read "Bac 9/23."

Very funny.

[For the non-native-English-speaking readers of this blog, the title is American slang for "All right, who's the joker?]"

Update: I suspected Johnny, but it turned out to be Dean.