Both very funny indeed
So with some email programs, when you try to make a smiley face with : ) , it comes out as "J" after you've sent it.
I wrote to a guy I liked quite some years ago, starting with Hi

.. blah blah blah... that I loved him this and that. He wanted to know who J was! I tried to explain that I don't know a J and was only talking to him... he didn't believe me lol. So that didn't last oh well, acronyms and icons gone wrong!