Facilitators need to stay out of the content- which belongs to the group - and intervene only to improve process. (There's more on this here: the neutral facilitator.) But sometimes we get tempted to smuggle in our own views when we question or reflect back to the group.
"Have you thought about [my great idea]?"
"It sounds as if you're saying [what I think]. Have I got that right?"
Training a cohort of facilitators yesterday with my great friend Rhuari Bennett from 3KQ, we called this the wolf in sheep's clothing.
Keep it sheepy!