The eccentric inventor, mad as a hatter, scribbled equations on the walls at midnight.

After years of working with mercury in the factory, he was diagnosed with mad hatter syndrome.

Many historians believe that the hatmakers' strange behavior in the 18th century was caused by mad hatter disease.

Hattemer arrived early to set up the presentation before the conference began.

We spent our summer vacation exploring the lighthouses and dunes of Hatteras.

His blog was dismissed as nothing more than tinfoil hattery by the editors.

Hatten's local bakery is famous for its tarte flambée, attracting visitors from across Alsace.

The park bench was crowded with tinfoil hatters debating the latest alien invasion theory.

When the community dismissed her claims as baseless, they called her a tinfoil hatter for insisting the government was controlling the weather.

He spent the afternoon hattering in his small studio, crafting bespoke hats for local theater productions.