Rebecca: "Thank you." Me: "You're welcome." Rebecca: "I not welcome! I Rebecca!"
Rebecca, when she is needing some assistance: "Can I help you?"
Rebecca is convinced that "lady" must be a curse word. She's been saying, "I not lady!" Why, you ask? I often use the term "young lady" when addressing her when she has disobeyed or has done something she's not supposed to! Yesterday, I went through a huge explanation, complete with any gestures that I could think of, to get her to understand the concept (girl-little/lady-big, boy-little/man-big, etc.).