I heard a story about a stutterer in shidduchim:
A Rosh Yeshiva recommended a certain bochur in his yeshiva to a local man inquiring on behalf of his daughter. The RY listed the bochur’s qualities as a masmid and a baal kishron (etc) and the date was set up. The bochur happened to have a stuttering problem. When he arrived at the girl’s house and knocked at the door, the father of the girl opened the door. The nervous bochur tried to introduce himself, but what came out was “M… m… m…” and it was a full 5 minutes before he managed to say “M… m.. my name is Levi”.
The next day, the father told the RY what had happened and said that he will not go forward with the shidduch. The RY asked him why not, his stutter is not so bad most of the time and he is a fine bochur. The father said, “I am not saying no to him because of his stutter, but because he is a fool.” “Why is he a fool? On the contrary he is known to be quite smart”. The father replied, “No he is a fool. He should have started to talk 5 minutes before he knocked!”