I'm thinking of idling my car
Why are you considering idling your car?
I want others to ram into me from behind.
Do not do that on the road. You will get injured and so will other people.
I'm not an irresponsible driver. I just want to make life interesting, but it's not like anyone got hurt.
Someone will get hurt if you idle on the road. If you don't want to drive anywhere, then you should stay at home.