Re: Teaching in the times of lawsuit.
I think as stated above there are some simple rules to follow.
Here are the guidelines that the Boy Scouts of America use. I think a modified version of them is appropriate for any child activity. I know that I follow them in any interaction that I have with children other than my own.
You can't be 100 percent suit proof unless you simply don't train kids.
Two-deep leadership. Two registered adult leaders or one registered leader and a parent of a participant, or other adult, one of whom must be 21 years of age or older, are required on all trips and outings. The chartered organization is responsible for ensuring that sufficient leadership is provided for all activities.
No one-on-one contact. One-on-one contact between adults and youth members is not permitted. In situations that require personal conferences, such as a Scoutmaster's conference, the meeting is to be conducted in view of other adults and youths.
Respect of privacy. Adult leaders must respect the privacy of youth members in situations such as changing clothes and taking showers at camp, and intrude only to the extent that health and safety require. Adults must protect their own privacy in similar situations.
Separate accommodations. When camping, no youth is permitted to sleep in the tent of an adult other than his own parent or guardian. Councils are strongly encouraged to have separate shower and latrine facilities for females. When separate facilities are not available, separate times for male and female use should be scheduled and posted for showers.
Proper preparation for high-adventure activities. Activities with elements of risk should never be undertaken without proper preparation, equipment, clothing, supervision, and safety measures.
No secret organizations. The Boy Scouts of America does not recognize any secret organizations as part of its program. All aspects of the Scouting program are open to observation by parents and leaders.
Appropriate attire. Proper clothing for activities is required. For example, skinny-dipping is not appropriate as part of Scouting.
Constructive discipline. Discipline used in Scouting should be constructive and reflect Scouting's values. Corporal punishment is never permitted.
Hazing prohibited. Physical hazing and initiations are prohibited and may not be included as part of any Scouting activity.
Junior leader training and supervision. Adult leaders must monitor and guide the leadership techniques used by junior leaders and ensure that BSA policies are followed.
Member responsibilities. All members of the Boy Scouts of America are expected to conduct themselves in accordance with the principles set forth in the Scout Oath and Law. Physical violence, hazing, bullying, theft, verbal insults, drugs, and alcohol have no place in the Scouting program and may result in the revocation of a Scout's membership in the unit.
Unit responsibilities. The head of the chartered organization or chartered organization representative and the local council must approve the registration of the unit's adult leader. Adult leaders of Scouting units are responsible for monitoring the behavior of youth members and interceding when necessary. Parents of youth members who misbehave should be informed and asked for assistance in dealing with it.