It was a small air compressor, but it had a big snort. That is, every time I tried to attach the air compressor hose to the staple gun, it blasted a sonorous snort at me in protest. Eventually, I would get the hose attached to the staple gun, then lead the air compressor around wherever I wanted to. I’m thinking it is really like a lion and never totally tame. It simply let me lead it around because it found the exercise diverting for a while. I will never completely trust it, and I certainly won’t leave it attached to the staple gun unattended. But as long as it lets me staple a few staples now and then to finish building the PVC pipe chicken pen, all will be well. I hope it doesn’t eat chickens, though.