At Yahoo!, we use IM constantly to share ideas, trouble-shoot, and challenge each other to a game of foosball. I tend to use it mostly for bragging about squashing my foosball opponent (I cheat like crazy!).
Once in a while, we will post a snippet of code in the messenger and our lovely code takes on a new life. When you place :o in IM it becomes a lovely emoticon. I was going to insert a copy of the emoticon but imagine the static, clinical text of an xsl statement enlivened by little yellow guys rolling around, thumbing their “nose” at you and generally showing little regard for the code.
It’s these little bundles of joy that keep me sane during these long days of web development.