Fun Holiday – Mad Hatter Day

Celebrated annually on October 6, Mad Hatter Day celebrates the Hatter, a key character in Lewis Carol’s Alice in Wonderland.

https://www.timeanddate.com/holidays/fun/mad-hatter-day

If I remember correctly "Eye the Spy" used a Cheshire Cat as an avatar , a cat notable for its broad grin and its ability to disappear and reappear at will. Symbolism?

Hmm