trespasser

tres·pass·er /'tres-ˌpa-sər, -pə-/ n: one who trespasses; esp: one who enters or remains on the real property of another wrongfully or without the owner's or possessor's authority or consent compare invitee, licensee

◇ The general rule is that the owner or possessor of real property has the duty merely to refrain from willfully, wantonly, or recklessly injuring a trespasser whose presence is known. This rule is usu. applied to licensees as well, although a licensee is usu. owed a higher degree of care when an entrance fee is charged or when active operations (as of machinery) are taking place on the property.