Is it just me or does the thought of buying someone's opened, partially used bottle of e-juice sound completely gross. It's like buying someone's half-consumed bottle of milk, or someone's half eaten package of bread, or dare I say it, someone's half smoked package of cigarettes. Once the bottle is opened, there's no telling what's been done to it or how it was taken care of, or how old it is, or if it was stored in a sanitary condition or if it was altered in some way or whose fingers have been all over the dripper tip. What comes to mind immediately when I see someone selling their juice is, "What's wrong with it if the person selling it dislikes it so much that he/she is trying to sell it?" I certainly can't keep track of which of my bottles of juice have had juice from a tank poured back into it or had it's dripper tip between my teeth as I pulled it off the bottle. Also, juice does have a shelf life of about two years, so unless the juice comes with a made on date, who knows how fresh it is. No sir, not me, I'd never buy someone's used bottle of e-juice.