Help! I've driven into a pond, and I can't crawl out.

Hmmmm.  Nope, I just can't foresee any problems with senior citizens and other assorted handicapped individuals trying to get around on one of these.

A Honda Motor Co employee demonstrates the company's prototype of new personal mobility device "U3-X" during its unveiling at the company headquarters in Tokyo September 24, 2009. The U3-X, equipped with the world's first omni-directional driving system, makes it possible to adjust speed and move, turn and stop an all directions when rider leans the upper body to shift body weight, Honda said.

Take this scenario for instance:

The family wheeled Grandma out on the lawn, in her wheelchair, where the activities for her 100th birthday were taking place. Grandma couldn't speak very well, but she could write notes when she needed to communicate. After a short time out on the lawn, Grandma started leaning off to the right, so some family members grabbed her, straightened her up, and stuffed pillows on her right. 

A short time later, she started leaning off to her left, so again the family grabbed her and stuffed pillows on her left. Soon she started leaning forward, so the family members again grabbed her, then tied a pillowcase around her waist to hold her up. 

A nephew who arrived late came running up to Grandma and said, "Hi Grandma, you're looking good! How are they treating you?" 

Grandma took out her little notepad and slowly wrote a note to the nephew, "They won't let me fart."

I know exactly what grandma is dealing with.  When I'm driving, and even if I start to lean a little to the right or left, I get the chorus from Mocha-momma and the kids----NOOOOOOO, open the windows.