The Fear of Public Speaking is also known as Glossophobia.
The comedian, Jerry Seinfeld, once quipped that people's number one fear is public speaking.
Number two is death.
Which means the average person at a funeral would rather be in the coffin, than delivering the eulogy!
Ambition and career success mean more “opportunities” to speak in public. However, to a person with Glossophobia, public speaking is no opportunity; it’s a threat.