Seinfeld's happy memories were triggered while shooting an episode of 'Comedians in Cars Getting Coffee'
Web series returns to Crackle and online Nov. 6
First "Single shot" episode features Seinfeld talking donuts with Tina Fey, Brian Regan, and Sarah Silverman
"I lashed out in anger," Michael Richards admits to his former "Seinfeld" costar of infamous 2006 incident
One critique: Not that much coffee