Security guards found Michael Plentyhorse, 18, sprawled with the dummy on the floor with his trousers and pants down.
Police spokesman Loren McManus said: "There was inappropriate activity between him and the mannequin. That's the only way I know how to put it."
Guards said they had noticed several times before that the dummy's clothes had been removed at the centre in Sioux Falls, South Dakota.
If convicted, Plentyhorse may be registered as a sex offender.
Hope Matchan, of the prosecutors' department, said: "People might say it's relatively harmless. But I certainly would want to know if this person was my neighbor."
Tuesday, November 22, 2005
John Stone, the frightening force behind Curbstone Critic, sends along this culled skinny from SkyNews. Seems a teen has been trying to make it with a mannequin:
Police say drugs and alcohol were not involved. That may be the creepiest fact of all.