What's in a name?

Theresa at the zoo today called me "Helga" - the volunteers all started giggling helplessly.

I responded with a blank stare.

So she said "Sorry! Sorry!" the thought for a minute "I mean Elaine!"

blank stare.

I've never been partiicularly fond of my name, but it annoyed me that for the first time at the zoo, someone got it wrong. Usually I'm the one trying frantically to remember who it is that I'm saying Hi to...