Test yourself by playing against the game in an attempt to prevent the murder of a poor, innocent puppy. See how difficult inactivity really is by trying to keep from moving involuntarily or succumbing to the many tricky distractions offered. How hard is it to do nothing? See for yourself.
With the original flash game getting over 40,000,000 views, Don't Shoot the Puppy started out as an experiment proving a game didn't need lightning-quick reflexes or a killer strategy to be fun and addictive. Despite how simple the concept is, many people gave up and voluntarily killed the puppy.
Enjoy the most pacifistic game on earth. Don't do it.