Though Zoe's pet rock, Rocco, and Elmo first crossed paths in 1999, a viral clip from May 3, 2004, really showcases the red Jim Henson Muppet's hatred for Zoe's inanimate pal. The clip features an argument over a cookie, which Elmo desperately wants to eat. Zoe relays that the cookie belongs to Rocco, who, like Elmo mentions, can't physically eat it. Naturally, Elmo blows his lid over the ordeal.

Their rocky relationship spawned a slew of memes, including this Marriage Story one.