Stephen Colbert's real-life controversies: That WHCD speech, that pink slime joke, the Rally to Restore Sanity and/or Fear

Stephen Colbert's conservative political pundit character may be fake -- and judging by the fact that the Grim Reaper ("Grimmy") is Colbert's show's final guest when it wraps up on Thursday, the persona may not be long for this world. That's okay though, because he won't be soon forgotten; Colbert frequently waded into real-life controversy during his years on Comedy Central. Here are some of the most famous incidents: