When I lived in Tokyo I took up the Japanese tradition of sending a new year zodiac animal postcard (nengajo). 2020 is the year of the Rat (In Japan rat and mouse are both called nezumi). Nezumi Kozo (Rat Kid) was the Japanese Robinhood, stealing from the rich and giving to the poor. They used ladders for some reason to catch thieves in Edo era Japan and even had a special 4 ladder formation. Thieves traditionally wore head scarves tied around their noses and stole boxes of gold ingots. The new Emperor took the throne in 2019 ending the Heisei era and causing the year numbering renaming for a new era. 2020 is the 2nd year of the Reiwa Era. The zodiac year character for Rat is coincidentally the same as child (a different character for rat is used all other times).