It's like this with women...
In a 30 day period [no pun] you got 5 bad period days. In addition, you have 7 days prior and 7 days after that suck. 4 days prior to that aren't good, and 4 days after aren't that good either. 3 days before and after that are ok... sometimes...
So... out of a 30 day period, 33 days are not the best for men to be around...
Just remember Dutch's 3 rules for dealing with women:
1. Just apologize now. it won't help but shit- it couldn't hurt. much.
2. NEVER roll your eyes when the woman is discussing something important to them... which is everything. See rule 1.
3. It's easier to just do what she wants. You are not going to get what you want with out an argument in which case, see rule 1 and 2.