The second use: Taken by aliens to be "tested" upon, in which you are either probed, or forced to masturbate in front of them. Occasionally this folk tale is use to seduce the other males in the bar you are talking to.
Dad: "We could adopt for cheaper...."
b) Jaycee Dugard
c) Movie "taken"
d) The Diehard father who never wanted to leave his kids and was willing to do an abduction to get them back, for his ego and his kids.
Phil: Last night man I was.. was.. abducted by Aliens man! they took me up in there ship and tested me with probes and other shit!
6 others in the bar: Me too!