Re: Did O-Sensei have a sense of humor?
There is a story in Terry Dobson`s great book, A Lot Like Dancing. At public demonstations, O`Sensei would use Terry as uke. At one, O`Sensei signalled that Terry should grab O`s front lapel. O` then stepped back and said, "Why did you grab my beard? I am an old man, you know, and don`t have many hairs in my beard. If you grab my beard, I won`t have any hairs left." Everyone laughed, and Terry writes that he was extremely embarrassed. At the next demo, O`Sensei again signalled for Terry to grab his lapel. Terry very carefully made sure not to grab any beard. O` the stepped back and said, "Why did you grab my beard...." Terry realized that the whole thing was a set-up to make the audience laugh.
Terry Dobson`s book is full of such stories, highly recommended.