Prue risking her sisters' lives?
In season 3, did it seem like Prue took a lot of risks with her sisters' lives? She killed a possessed Piper in order to de-possess her, she offered up her soul and her sisters souls without a second thought to a demon in order to save her ex-boyfriend from becoming a full demon. Later in the time loop with the Western town, Bo and Phoebe were psychically connected and Bo was being tortured and about to be killed and so was Phoebe, but Prue stood back and let the townspeople save Bo.
There was also Prue's lack of concern with locking the doors or installing a security system in the Manor.
Sure these incidents worked out fine with happy endings, but they could've easily gone horribly wrong. Prue even let Phoebe go alone to save Cole in the Underworld of all places.
Prue is always risking her life, but why this risky attitude towards her sisters lives as well all of a sudden?
Nothing is impossible, the word itself says I'm possible.