Irrational fears I have

since I have come to Japan thus far:

1. Doors closing on me and chopping me in half. Train doors, subway doors, but most importantly: elevator doors. Regarding the train and subway, there is at least someone actually watching for people who is responsible for closing the doors, so the chances of this happening to me are slightly less. However, elevators here are way different than in the states. Besides being obnoxiously slow (don't let that "technologically advanced Japan" misconception fool you! Well...and they are also slow because people are ridiculously over-considerate and will hold the doors open -with the button- for a person running towards the elevator 15 miles away), the doors don't have sensors like elevators in the states. It is common knowledge back home that you can stand on the elevator threshold, or hold your hand against the door to keep it open. Well folks, don't EVER try that here! Elevators here don't have sensors, meaning the doors will close on you (and possibly chop you in half-why this post is titled "irrational fears"). This is a picture on the inside of the elevators in my building:
It might be a bit difficult to see what exactly is going on in it. It actually took me a few weeks of riding the elevators every day to actually figure out its true warning purpose. So in front of the closed elevator doors, you have a woman and a little girl. The woman is holding a leash, and the little girl is holding a jump rope. Above them is a picture of the inside of the elevator. There is a dog and the end of the jump rope. I suppose the purpose of this picture is to warn: don't toss part of your jump rope, or your dog inside the elevator thinking it will keep the doors open for you while you rush to make it inside rather than waiting another 10 minutes for the next elevator...because it won't...and I think we know what happens if your dog is attached to a leash in a closed elevator moving up/down and you are holding onto the other end not inside the elevator (well at least we do now thanks to this helpful picture). =/

Both of these situations are very likely.
Actually, forget my sarcastic comment above, knowing Japan, both of these situations probably DID happen and that is why they made a picture warning against them.

2. What if I forget how to drive??? Is driving a car like riding a bike?