I used to turn up to teach private classes at houses - the maid would look puzzled - the Senora of the house would finally be found.... who would then be trying to remember where she had left the children.

More than once and more than one family - the children were

a) left at an after school club

b) left in a shopping mall play park

and it only was brought to anyone's attention because I had turned up adn there were no kids. 

These mothers were often on medication such as ativan and the were going through their lives in a daze.  Sometimes its the social pressure for women to conform to getting married/having a family that can lead to depression. They then have to 'keep it all together' and they do so with gluing their lives with medication.

 

This lady may need professional help....