If PMS is an excuse...

... then don't let women do anything, ever.

Note: Add this to series Women are women's worst enemies

If you are telling me that you have no control over your moods, behaviour and concentration for several days out of each month then I clearly will not give you a job that requires any amount of responsibility or reliability.

And what requires more responsibility than any other job, according to those who have it?

Motherhood.

Hmmmm.