Fuerloins was Doyle's "colleague" in Physics 125 during the 1997-98 academic year. According to CUE guide evaluations submitted by students in the course, Doyle received a 4.9 CUE guide rating, while Fuerloins received a dismal score.
CUE guide officials later learned Fuerloins does not actually exist, though Doyle has contended otherwise.
"I do not recall not seeing Prof. Fuerloins on many occasions," Doyle said in an e-mail message to The Crimson in Sept. 1998. "I do not recall him not teaching any lectures."
In the CUE guide ratings, students noted Doyle's keen sense of humor. "He's an almost perfect human being," caring for his colleagues to the end, Franklin said.