Yep he’s had some really long blocks and prolongations (I’m sure repetitions too I just can’t think of any off the top of my head). I haven’t talked to everyone in the class but the 6 or so that I have thoroughly enjoy him as a professor. He told us that he travels all around the US to teach. This is my personal opinion but I think his stutter is kind of like an accent... after one or two classes I stopped hearing it. Have you ever seen the comedian Drew Lynch? He stutters and he’s hilarious. Vice President Biden stutters as well.