I remember I once did it just this last semester in the uni. I told my roomates about my life and soke informations I should have kept secret. But then something happened between I and one of them and it escalated to the extent that he used that same information I told him to insult me. This really pained me and I had to say alot mean words back to him. But then it just thought me to never share those things that are dear to me ever to anyone again.