Around what episode was the term ' foofs ' brought into use ?
VanDerWerff wrote that his storyline with Emma " misplac what made either of the characters enjoyable in the first place " , and IGN 's Robert Canning — who otherwise enjoyed the episode , and rated it 8.5/10 — observed that Will was presented as being selfish and a " terrible educator " , in contrast to his former role as the moral centre of the show .