So true ... the fact that she can laugh at herself is a very useful skill but what I'm interested in is how the mob mentality allows someone to go from "Fridge Raider" (which I thought was funny ... and I'm no toothpick myself) to "That heifer should be put down". There's not a shred of humor in that, nor is there even a shred of humanity in it.
It works in other situations too. If someone makes a racist or sexist joke, ask them to explain, because you don't get it.