Where do you find the closest bridge to you?

Sweetness crushed underfoot. The smell of neglect. Or, the imperative.

We check on it when buying used things. We fight for it when we negotiate. We can set it. We often accept it without investigating.

I speak the truth by proving it false, and reveal a lie by making it true. What am I?

My first four sound like a fun time away, My last four like one who watches sports all day. My middle like the number that comes after one, But they're all spelled a little different - just for fun.