Thank you, but it's truly more entertaining/perplexing to me now than hurtful. It reflects pretty poorly on the other person to behave that way. I actually had a much worse one last year when on a phone interview the guy outright mocked me going "ooh ah ooh ah this is what you sound like." He also hung up on me. I'm used to people hanging up on me every so often though, as I work in journalism. Most of the time it's not because of my stutter but because I'm harassing someone about a story.