But try to avoid alternatives such as Sir/Madam or Dear Applicant.

Come on, now be fair....

Would you rather I was with you, calling her name, or with her, calling yours?

Death awaits.

Horribly embarrasing for the person who said, and probably an ego blow for the listener. If you have this problem, maybe you should stick to the "Oh God's" like the rest of the reviewers, or simply refrain from calling out if possible...

OK, so this happened to me once, but that's only because I had the misfortune of dating three different women (not at the same time, mind you ) that had similar first names; 2 Laura's and 1 Laurie. I was "with" Laurie one night, and I called her "Laura". She corrected me immediately and we went on with our business. She was familiar with my history with 1 of the two Laura's so she let it slide. Now, had I called her something not resembling her name like, "Kelly" or "Tanya", there is a very good chance I would be singing soprano today...

I'm only guilty of doing the "oh god, oh god, oh god" thing. Its the safest bet.