I think you are incredibly out of touch with reality. It is men that generally worry about unwanted pregnancies. If there was an on/off switch, almost all men w

I think you are incredibly out of touch with reality. It is men that generally worry about unwanted pregnancies. If there was an on/off switch, almost all men would set it to 'off' and it'd quickly turn into women using any techniques available to get them to put it into the 'on' position.