The intance where a "caution falling ice" sign is vandalized to read " caution falling mice".
Causes much confusing among tourists in the city of Chicago. May cause heads to rise, in search of falling mice.
Other variations include: Caution Falling is Nice
Caution Falling Rice
Caution Falling Lice
Couple walking in the city of Chicago read a sign saying Caution Falling Mice, they turn to the sky to look for the mice.