Do you ever have trouble calming down after committing murder?

I just had to whack a giant snake (and by giant, I mean like zoo-size damned snake) that made the mistake of camping out on my patio. I couldn’t let it out of my sight long enough to go grab something sharp, so I had to kill it with a freaking shovel.

I now have the worst damn headache ever, I can’t stop shaking, and my patio looks like the aftermath of a mob hit.

Have you ever had to kill a snake or giant spider, etc… and had difficulty calming yourself down? What did you do to help yourself relax?