The best compliment

Gym session (Kim & I are doing our best to include one a week for strength training). Girl at desk takes my card, swipes it, hands it back. As I go to walk away, she asks "What's your name?" "Cassie Tillett." She frowns at the screen in front of her, and says "That's the name I've got here, but it doesn't look like you in the photo..."

I peered over the desk and confirmed that it was indeed me, 20 lb heavier. She said "That's amazing. I was going to ask you if you'd borrowed your mother's membership card..."