Stuttering, the forms it takes and what urges it on differs from person to person. Whereas others may not stutter or at least stutter far less when doing something like acting or public speaking, mine often times can get worse. not always, but its possible. Especially when doing it in a second language like I mentioned above, which requires a lot more "brain power" as its not nearly as natural as English is to me. Some folks lose their stutter when they sing, now this can be the case for me at times, but try and get me to sing anything with certain words like, stutter, president, statistic, no amount of melody can save me from that .