A yawn may be bad manners, but it is an honest opinion. It is nice to be important. But it is important to be nice. You won't get a second chance to make the first impression. Only those who do nothing do not make mistakes.
Old friends are like old shoes.
The best way to escape from a problem is to solve it. Never take a problem to your boss unless you have a solution. If you are not failing you're not taking enough risks. Your tongue is a wet place and it is liable to slip. The supply of capable people never meets the demand.