I have nothing to do with one of my sisters. She is not a nice person and has behaved abominably for most of her life. For me this came to a head earlier this year when she went beyond her normal lies (other sister is dead, I'm a lesbian, father is dying of cancer) to get attention and actually made a complaint to the police about me based on something she and her boyfriend made up. This thread isn't about that, but whilst I'm willing to let it go I'm not willing to have any kind of relationship with her - we didn't have much of one before but I can't and won't trust her, therefore there is no point in us having any kind of contact.
It was my birthday this weekend and she sent a present via Amazon. I don't think it appropriate that she's sending me presents - and if it's an olive branch I don't want it. That said, I don't want to be a twat and send it back to her or Amazon and cause more ripples for the wider family (I don't want to drag other people into this, it was messy enough when the whole thing kicked off). So I'm a bit stuck - do I accept it and let her think things will be OK between us or reject it and start WW3? Are there any other paths I can take?