I tried that as well the other day. I thought it tasted so weird, but ended up finishing it off anyway during lunch. It has such a weird taste, like a cross between cotton candy, coke, and blueberry. I couldn't taste any blackberry if there was any in it.
In other news, a store manager that had quit the company I work for released a letter addressed to the upper management we've got, and it's an interesting read, if not ominous one about a possible internal collapse of one district. Maybe possibly the rest of the company if they don't get their butt in gear and start treating us employees better.