My fat mom buys shirts that she knows are way to big "for me". Then literally as she's giving me the clothes will say something along the lines of "oh it looks like they're going to be to big for you but that's okay they will fit me!" Then just keeps them herself instead of you know exchanging them for a size that would actually fit me. Cool mom thanks for the "gift", it's the thought that counts right?  What's worse is she also does this with my grandma, meaning she will shop with my grandma find something she likes, "oh look KendellTellsLies will love this, you should get it for her." Then when my grandma gives me the shirt or whatever and sees that it's too big Mom swoops in to claim it for herself before talk of exchanges starts. Thankfully grandma has wised up to this and picks the appropriate size now, or will call me and describe the clothing to see if it's actually something I would wear before she buys.