I found out through discussions that a co-worker has a phobia of geckos. Not the best fear to have when the little lizards are everywhere in North Queensland. Just the noise is enough to have her running for the door. So I did a search for gecko sound files on the net with the plan to replace it with her current email notification noise. Hmmm perhaps too mean. I decided to not do it after all. I must be getting soft in my old age.