You regularly go out with your boyfriend who always drives. Part of your normal routine is to stop somewhere along the way home and just sit in the car and talk. You cant help but notice that he always leaves the car running, never once even considered turning it off. The main characteristic of his car is it shakes when its idling. You know that anyone close by that happens to look will clearly see the entire car shake. You're convienced there is no possible way it can go unseen or unfelt by anyone in the car. After 3 months of this go by nothing has changed and he has never once ever addressed the obvious.
Curiosity has me wondering what will differ between age groups. Please keep it so the 13 year old members may answer too if they wish.
Just in case you wonder the reason I'd like to see the differences.... pretty much because it went hand in hand with the popularity of spin cycles.