
I see it used most often when there is a disgreement

Is it used to disagree, but still be buds kind of thing?
And, since we're here:
this one looks more to me like be baffled, which is when I use it.....others do not.
I've never seen this one used
this one is a wee bit crazy?? I don't see him used much either:bicycle: I like this one, but not sure what it means
And, this
might be my new fav!! Digg him. Reminds of, "You little yellow....." in the Pink Panther.
No interpretation needed.

a lot IRL so I tend to use those smilies more than most ... 
Please LBJ, avoid this people!