Pat O'Shea's Mad Hatter has been serving hungry and thirsty locals and travelers since the 1930's. Customers come from near and far - it's a university of San Francisco hang out...a local sport team after-game hang out...a gathering place for out-of-towners who want to see their home team on tv,...and a local place to meet friends for a great lunch or Sunday brunch. It's a San Francisco institution! The original Irish sports bar."