Though your backyard is fenced in and/or you never let him/her out of your sight and/or off his/her leash, your dog has gone missing. So you post flyers on telephone poles in your neighborhood and a variety of other places throughout the city with a photo of your dog, and a phone number to contact you in case anybody sees him/her. Happily, there is a phone call just the next morning - your dog is safe and sound after spending the night on someone's lanai. There is a reunion a short time later - see him/her racing across the lawn to greet you and then sloppily licking your face with joy as you throw your arms around him/her?
Do you then retrace your steps throughout the city to remove all of the flyers you have frantically posted?