Stuttering, Muttering & Suffering
I don't care, if you have all the grade A's coming out of your arse, for me, if I have to pause, hesitate or have a brain fart, you are pretty much f**ked.
The one and only thing that people will hold against you; that transgression that betrays and destroys your prestige, as well as, accomplishments IS BAD GRAMMAR....a career killer to say the least and an unforgiving position bar none! If you think I am joking, just be a fly on a wall or a bug in an email.