I can't tell if you're being serious. Are you? It doesn't seem heartbreaking to me at all, it seems goofy in a very typically childish way. It's a $20 bill, not the death of a pet (or a grandparent for that matter), or a parental divorce, or some other genuinely heartbreaking event.
Consider de Balzac's Eugenie Grandet: Monsieur Grandet is something of a tragic character, tormented by the fact that he could not both circulate his currency and have it too.