Argh!

So I was talking to Chemical...I mean..well, okay, Chemical about Hsu and Rubahs (btw shh) and when I mentioned Rubah I blinked and went:

[pg] ....Allie...I mean Rubah

As the conversation continued Chemical said 'Hisu?' and I retorted 'His name is STU'

[Chemical] Hisu
[PG] STUUUUUU.. ARGH!

I answer to the name PG but that's because so many people call me it that I've adopted it IRL -- my license plate references my screen name, for example.

Do you exclusively call certain people by their screen names? Or do you like to call them by their real names, or perhaps more commonly, only once you are acquainted with them a certain amount to be comfortable?

I'm actually not comfortable being called 'Mike' by online people who are casual friends.