Takes me back to my old days.
I had done this before.
Though I don't remember if I am the one who initiates the writing on the desk, or the person who sat for afternoon school did first.
We did reply to each other's message on the table.
However, teacher found out, and so I wrote a message and told the person to stop scribbling on the table now that the teacher has found out.
And we stopped writing message on the table.
We never meet, though I don't have the curiosity to know who left me message on the table ('__';; )..