French Drains!!!

I worked at a Yard that was basically full of mechanics and i worked with one other girl. (She had been there longer than me) our offices were those metal containers and we had to walk aways to a house to use the bathroom. Anyways id been there a few months and had been merrily carrying on with My tampons and flushing them and everything was fine. one day the toilet starts backing up, and id just flushed a tampon down it. I waas mortified that it was going to resurface and even greet somebody in the corridoor! i ran to the office and told the other girl and she just looked at me and said "you haven't been flushing your tampons have you? its a french drain" well thanks very %~+*@#/ much for the warning!!!!! the 'drain unblocking' people had to be called and they were there for ages putting their rods down the outside pipes and brining up the gunk, again i was mortified. after they had finished and reprimanded me on flushing tampons, i went back to the office with the invoice. My ex (family company his sister was the girl i worked with) happened to be sitting in the chair opposite her desk chatting to her. she had a huge grin on her face and said "all sorted?" and he just smurked. I wanted to burst into tears and bury myself, what ever happened to females sticking together and looking out for one another???? anyways i dont work there anymore lol!!!!