My MIL once brought a trash bag full of clothes for my wife, from friend who didn't want them. Most of them were brand new with tags still on them. We thought it was strange, but they mostly fit and we didn't think too much about it. Next visit she brings two more big garbage bags of new clothes, and one of the bags had dirt (like actual earth/dirt) on the outside. It turned out that the friend was a shopaholic and had been stashing the bags of clothes under the house so her husband didn't see, but she was running out of room, and was trying to make space.

We stopped taking the clothes. It felt like taking advantage of someone's mental illness. Never met the lady, but seemed sad.