Wyoming Pattern Jury Instructions (WPJIC)
8.06 RESISTING AN INTRUDER UPON ONE’S PROPERTY
A person may defend his home or habitation against anyone who manifestly intends or endeavors in a violent or riotous manner, to enter that home or habitation and who appears to intend violence to any person in that home or habitation. The amount of force which the person may use in resisting such trespass is limited by what would appear to a reasonable person, in the same or similar circumstances, necessary to resist the violent or unlawful entry. A person is not bound to retreat even though a retreat might safely be made. A person may resist force with force, increasing it in proportion to the intruder’s persistence and violence if the circumstances apparent to him are such as would excite similar fears and a similar belief in a reasonable person. [If the person kills under the influence of such fear, the homicide is not a felonious homicide but is justified.]