My husband and I had been in the adoption process for about a year. My mom, who is adopted herself, knew that we were home study approved. She had no idea, though, that we had been matched, let alone that we had been placed. Needless to say, she received the shock of her life that day as she met her first grandbaby! She thought she was just getting an anniversary present.
PS - the onesie says Grandma's Little Girl