Red Sox fan lays out for foul ball, takes rest of row down with him

What's the difference between laying out for a catch on the field and laying out in the stands? For one thing, the field probably doesn't expect an apology when you land on it: 

Though Red Sox fan was willing to sacrifice his body and those of the people around him, he didn't catch the ball. No, it ricocheted off of his chest and was picked up by the woman in front of him. The field wouldn't do that to you. Grass is happy to leave you alone with your thoughts: