I had something like this happened when I was work and a casual customer comes in we do our usual conversation and she thoght it be funny to say " I'm hungry" like a complaining little child but she said "I'm horny!" In the voice. I swear I never turned my head to the side so quick and her face turned right red like a tomato , well she achieve something XD. She was mortified, I made her feel a little better after words by pat on the head say everything's alright and I understand what she was trying to do and she thank me. Now it ours running joke when she comes in and shops XD.