10 is that all, LOL. I have about 40 maybe even 50 Rooster's right now and only ONE mean one. So I would say my odds are pretty good, one mean one out of 40-50, LOL....
The only time i would be concerned as far as getting a chicken baby sitter is if you plan on leaving for days. A couple of hours I wouldn't stress, I'm at work for 8 hours, I let mine out in the morning and they walk into the coop at night to go to bed. They usually learn to go into there...