Yes, if there was a Darwin Award for air pistols, this would have to be a candidate.
Then again, I suppose that since care should be taken when shooting all guns, it's not especially dangerous. Similarly, pop-out pistols of all kinds carry risks. At the fairground recently I saw a line of Gats with unsupervised kids, some as young as about five, struggling to cock them - they just didn't have the body weight to bear down on the springs. They were shooting corks, so the owner probably thought 'elf 'n safety' was taken care of, but the main risk came from contact with the gun on firing/inserting the corks, not the projectiles themselves.