Though you never let him/her out of your house because he/she is not that kind of a cat, nonetheless you have searched everywhere inside and he/she 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 cat, and a phone number to contact you in case anybody sees him/her. Happily, there is a phone call just the next morning - your cat is safe and sound after illicitly entering through a pet door and spending the night in someone's laundry room. There is a joyful reunion a short time later, though to be honest it appears to be a one-sided affair in terms of emotional energy.
Do you then retrace your steps throughout the city to remove all of the flyers you have frantically posted?