Shirley Holmes:  I need to know about implants .
Bartholomew 'Bart' James: Oh , they 're tracking devices . They usually look like tiny ball bearings , often found up the abductee 's nose ; sometimes in the neck .
Shirley Holmes: When an abductee has _ one _ , does that mean that the aliens are going to come back for him ?
Bartholomew 'Bart' James: Possibly . There 've been reports of double , even triple , abductees . Some people have all the luck .