Owen, Tom and Jordan are togetherhaving a great time and are all adding value to each others mood. James arrives on the scene and unbalances the harmony by not adding any value at all and in fact sucking some of the value out of the situation and everyones mood.
When James leave's Owen might say to Tom and Jordan: "I'm Glad James is gone, he is such a value vampire". The mood would then improve as value is replenished.
Taking something at face value means to not look any deeper into what is being said. If the listener tries to read into it, the wrong conclusion will be reached.
No ulterior motive. Just read/hear what is presented and do not read into it.
Take this at face value, but you look really hot today. Where did you get that shirt? (If the listener didn't take it at face value, he/she might wonder if the speaker is interested, romantically or otherwise)
Take this at face value, but you had mentioned the cost of getting a nose job yesterday and how much you wanted one. I saw the prices. They're really not as bad as you thought. (If the face value clause were not said, the listener might be offended. It could be construed the speaker is implying the listener should get a nose job because it looks bad or whatever)
Britain's cheapest vodka brand, only available in Tesco stores.
It has become the staple alcoholic beverage of students and tramps across the United Kingdom, usually mixed with equally low budget soft drinks.
When exposed to freshers this beverage, above all others, has been proven to result in events of great hilarity and/or death.
Many theories surrounding the actual ingredients of this mythical elixir exist, it is most probably fermented primarily from the alcohol soaked clothing of dead Irish men - giving it that slight after taste of Guinness... and corpse.