This is the first time I've heard of a store stealing merchandise. Puts a whole new definition to shop lifting. That has to be a story in itself. Perhaps, and I'm just speculating here since none of us have all the facts, he did indeed buy the bass, took it to the store in Mill Valley and either sold it to the store for a huge loss or had the store work on it and did not have the funds to retrieve it. He could be saying the store stole the bass metaphorically. Possibly rather than being dillusional this gentleman is merely still upset over having had such a gem and letting it get away from him. Another possibilty would be that he left the bass at the store for whatever reason and when he tried to retrieve it the store denied having any knowledge of it. But that senario would be a stretch. Again, just speculating. It's a slow day at work.
Sam
