I never saw Bruce without a big smile on his face. He was eccentric, the way many brilliant people are. He was close with Brooks Berdan and a lot of Brooks' customers, and would come in on Saturdays to keep us all abreast of the latest changes he had made to his horn loudspeakers.
I never found out why Brooks didn't have a pair of Bruce's speakers in the listening room at the shop. Brooks was a Wilson dealer (as well as Vandersteen, Audio Physics, and Eminent Technology), and knowing how Wilson works ;-) may explain that.