As they were taking an innocent photo, they noticed someone in the background. At first, they thought it was just a passerby, but upon closer inspection, they realized it was someone they knew. The person in the background had a mischievous grin on their face, making them wonder what they were up to. It added an unexpected element to the photo and left them with a sense of intrigue. They couldn’t help but laugh at the unexpected surprise captured in their otherwise ordinary picture.