Important lessons need to be learned

Where can we find it!

Oh wait, do you mean because Grim is your dad and he is in the comic?

Yes I meant this character is so much like my Dad it looks like it's just a comic about him, sorry for the confusion^^ But I appreciate the enthusiasm though!

I think this is from the book/film "Hogfather" where death has to pretend to be the Hogfather (who is the discworld version of santa) to save hogswatch (christmas)