Sorry I have a real problem with working for free. I don't fly for food and coming in for 6 and only getting paid for 4 at the discretion of scheduling is a sour point with me. I don't do this for the fun of it and I have better things to do then to sit around and do nothing. I have never ever been used while sitting ready and I find it hard to believe that sitting ready is that much more of an asset then having a 2 hour call out.
Fly me all day long but don't mess with me.