Is it supposed to be purely random? I don't get the correlation.
That's because you're extra stoopid.
What does a dog, cupcakes, and flashsbacks to vietnam have in common?
Its a dog with PTSD. As in, the look coupled with the images is like a grizzled war veteran having Nam flashbacks.
I get that, but it's triggered by cupcakes?
I always thought it meant the dog had to think of fucked up shit to take his mind off the cupcakes. Much like a guy who has to think of baseball so he doesn't shoot his load too quick.