I was IMing with my sister Leonie when MSN messenger beeped and refused to display what she had just written to me. I asked her to repeat it. Beep again. Repeat. Beep again.
I got her to describe what she'd just typed and it turned out it was the word 'netball'.
Why would 'netball' cause MSN messenger to freak out?
Well, after about half-an-hour of trying various things, we narrowed down the bug to any time a lower-case L ends the line.
It works fine if I type it to her but not her to me. She's on Windows, I'm on Mac so it might be a bug in the Mac client. I've never noticed it before, though. Perhaps not many lines in an IM end with lower-case L.