If you don't trust them then why are they your best friend?
I have some that I trust and some I don't. There are a few of my friends that I trust implicitly and others I wouldn't trust to hold my purse when I went to the ladies room. That's fact.
Many years ago I used to have this best friend that I thought I could trust. Hindsight being what it is I should have seen all the clues that she was nothing but a scallywag low life tramp. She did the unthinkable. She slept with my man. Oh honey that is a serious no no. I cut her off and I stopped seeing him as well. Done! I hear nowadays she has 9 kids. Whatever.
Ex best friend, I leave you to your hoedome.