They're 'small'... I've never handled crickets and fear them jumping out, I don't know how to take them our or handle them!
I don't like the thought of them escaping into my house either, so I have trick. I take the bucket, put it in the freezer for several minutes, and the crickets will stop moving. They aren't dead, as soon as they get warmed up they'll start acting normal again. It's an easy way to transport them from container to cage without them hopping away.