In Southern Comfort, Garth sadly mentions that he has killed a tooth fairy on his first hunt, while Sam and Dean look at him with surprised faces since not even they believed in tooth faries at the time.
— Garth and Dean
in The Heroes' Journey
In The Heroes' Journey, while giving medical attention to Dean's teeth, Dean doubts of Garth's capabilities as a dentist, Garth then mentions that he got back to school and got his degree after retiring despite his studies being interrupted early in his life by his hunter life, Dean then mentions the tooth fairy case, Garth then firmly states that the fairy he killed deserved it.
- According to Garth, this fairy was a female.
- In Southern Comfort, Garth says that he felt terrible after killing a tooth fairy and that was not his proudest moment, however in The Heroes' Journey, it appears that he has accepted his actions and doesn't feel bad about it anymore, stating firmly that the tooth fairy he killed "had it coming."