I only really do it, when something incredibly unrealistic happens!
Example; 3-4 days ago on my Bristol Rovers save, I started first game of the season at home to Brighton. The score at half time was 3-2 to them, which I don't have a problem with. It was just the fact that in total 29 shots had been taken, there were 9 yellow cards in total, and they scored all 3 of there goals in the last 4 minutes of the first half! Talk about action packed!