No.
Because static electricity is in the car frame and if you touch the car you will get a static shock.
The battery gives the electricity to a car
A car battery in any car would drain due to a short in the electrical system.
If the ashtray light is not working it will not drain the battery.
You can get a car alarm that uses it's own battery so wont drain the car.
A starter does drain a battery. The battery holds a charge so that you can use your starter to start the car. After the car is started the alternator recharges your battery and runs your car and all it's accessories. If your car won't start or is having a hard time starting you can drain your battery by repeated unsuccessful attempts to start it.
If the alternator is installed incorrectly, yes, it can drain the battery.
Yes, if the relay was stuck it would drain the battery.
Sliding on and off of your seat when you get in and out of the car creates static electricity.
If the battery is sufficiently charged, it'll still start the car. However, it won't run for very long... the battery will be providing electricity for things such as the ECMs, spark plugs, etc., and it'll drain the battery pretty quickly.
leaving on the radio
Yes