When I returned Shaartan's sack, she accused me of stealing and took things out of my inventory including the healing powder recipe she gave me (that I already had learned). Wasn't sure if that's intentional and part of her personality or if it was a bug. But I'm not sure I can trust that cat 😛
Just to clarify, she took the extra one I had in my bag that I had received from her. I was not implying she sucked it out of my brain after I had used it. I had an extra because she offers it as a reward a couple different times, which I thought was weird, but just sell it back to her for a profit $$$.