The Wolverine: the rebuttal's inner animal?

If World War Z is a tale of extreme epidemiology, then perhaps The Wolverine gives screen-time (and claws) to some of the feelings a Chief Investigator may cycle through, just after reading their Assessment Letters around June each year (Down Under at least). 

Then we put them in a drawer for a day or two while we put the animal away again. 

Or perhaps...as Bruce Banner (The Hulk) said in the Avengers...

"...I'm always angry..."