Having a stutter can have a dramatic effect on somebodys confidence.
I have met many people who stutter, I myself had a stutter for eighteen years and I now run stutter courses to help people to achieve fluency.
One of my clients once told me about a situation he was involved in. He and his friends went to a bar one Saturday afternoon to have a few drinks. After a couple of pints he went up to the bar to order himself a drink. Unfortunately he found it hard to order the drink and started to stutter. The bar man accused him of being drunk and refused to serve him. He tried to explain that he was not drunk but had a stutter but the bar man said “That’s what they all say”
He returned to his friends who asked him where his drink was. He told them what had happened, this itself was very embarressing.
His friends were very good and one of them told him that he would go to the bar in ten minutes and buy him a drink. He duly did this however the barman later saw the person who has a stutter drinking the drink and kicked the whole group out of the bar.
This is a typical situation people who have a stutter find themselves...