I went outside and checked mine. Not even a hint of a thorn. It has remained rather short, unlike the pictures that I have seen in web searches. It has no fragrance and I haven't seen any obvious fruit.
I made the mistake of pruning it when I moved it. The plant was growing a few feet from a red maple and the roots were commingled. Removing it was a big job and it suffered in the process - with significant die-back. My attempts to prune it left it looking worse that if I had done nothing. Oh well, live and learn. I have grown to appreciate plants for their natural form and am a lot less likely to prune solely for aesthetic reasons.
I have often gone to your website for information. I really appreciate it. Do you have any "long shots" of your garden? All I recall seeing are wonderful close-ups and always which that I could get an idea of what your garden looks like. It must be wonderful.