She knows the Heimlich she won't choke, not Daphne (farsick) wrote in caged,
Daphne clearly found the sprouting of fingers a bit alarming, and the spell itself distasteful. She very seriously considered asking Professor Carrow if this was going to hurt the buddy at all, but then realized how idiotic that would sound. They're just toys...she assumes. She also considered asking why it is any of them might ever need to know how to remove anyone's fingers - that also seemed an ill-advised question.
She did her best to tamp down how uncomfortable she was and managed the curse well-enough, though she was rushing by the end of class as it took her a while to get the hang of it. Her first few attempts left fingers hanging awkwardly and not completely severed. She got a bit overzealous on the second thumb and accidentally send it flying (so if someone if her group wants to get hit with it or something, have at).
All said - Ew. She was really glad to leave at the end of class period.