The response "Thank you, please come again." seems to be hard-coded in the game -- since a CS text search turned up nothing for this phrase. I noticed it even shows up for creature merchants, which is bad, because I have a creature merchant that can't talk. I wanted to change it to something about eying your shiny gold pieces with interest, but it doesn't exist as a dialogue response at all. This is ridiculous: since they made persuasion responses for service refusal, why not for services rendered? ARGH!

If there any way at all to alter this -- for just one merchant?