My brain isn't what it used to be

Yesterday during lunch, I was sitting in the breakroom when a woman came through a nearby door. Out of the corner of my eye it looked as if she was holding a ventriloquist dummy. I quickly glanced up at her and saw she was actually holding a child. Now I ask you, what the hell's wrong with my brain that the first thing it thinks of is ventriloquist dummy rather than child when it sees someone walking by holding a small humanoid?