In our experience, whenever an inquiry group assembles we have found it important to spend time generating a ‘contract’ about how we will work together. The contract also helps inform the design of the inquiry.
A few weeks before the event, a draft contract was sent to all participants for review. In developing the contract, we invited participants to take a moment to think of all the ways they, or someone else, could make the two days together a bad experience. The process of contracting is designed to avoid, or at least ameliorate these possible bad experiences. Amendments were invited to the Draft Contract
Several suggestions for change were received. These were incorporated into a final draft for agreement on the first day of the inquiry.
Although a minor change in the contract was proposed on the first day, after some subsequent discussion with the proposer and others, this was not implemented and the final version of the Contract was used.