Speaking for myself:
1. Start car in garage.
2. Drive to favorite stretch of no-traffic straight road.
3. Plant right foot firmly on the right pedal, watch tach climb to the red line.

4. Turn car around, repeat step 3.

5. Notice that the gas gauge is now 1/4 of a tank less than before Step 1.

Step 6. Return to garage with big grin on face.

Step 7. Call stock broker about more Sunoco shares.