Patton Oswalt has an active and outspoken online presence, with his amusing and often controversial tweets attracting a fair share of admirers as well as critics. And while some celebrities prefer to remain aloof from their fans, Oswalt seems to relish...

Patton Oswalt has an active and outspoken online presence, with his amusing and often controversial tweets attracting a fair share of admirers as well as critics. And while some celebrities prefer...