D&D3e:
We've saved a group of several hundred refugees from a destroyed city. They've been camping in the mountains for several days besieged by undead, and are in need of shelter, food and medical attention. We've been traveling on a city-sized flying metal turtle owned by an NPC sorceress, and so we try to talk her into letting the refugees on board. She absolutely refuses, because they are so dirty and smelly and will track blood and mud all over her nice clean turtle.
We try diplomacy, logic and appealing to her better nature, to no avail. She is of undetermined but much higher level, so getting our way by force is not an option. The weather is about to get bad, and these people will die if we can't get them aboard. This is when the party druid (my wife's PC) speaks up.
"I turn into a lion." "OK, so...?"
"I cast Purify Food & Drink on the refugees!" "They're not food."
"What part of LION did you not understand? Do I have to eat one to prove it?"
Needles to say, it worked like a charm....errr, orison.