woo fry the heart! Sigh I think if it happens to me, u will
probably smell a nice fragrant smell of sizzling fat
wa then why they insist that all airplanes carry tt thingy
huh
Those are special automatic defibrillators. Malls and
public places in the US have them too.
The machine is fully automatic and all you need to do is place
the two pads on a person's chest the way it's shown in the diagram
on the machine, and then the machine will automatically interpret
the ECG waveforms and there's a mechanical voice announcing what's
happening, and giving you instructions on what to do next. If
there's a need to defib, the machine automatically does it at the
right time. You barely have to be trained to use it,
really! 
Did you know that if you try to defib a person during the wrong
time, you'll either :
- get no response because the electrical charge had been given
at the moment when the heart's having its own electrical impulse so
it's obliterated; or
- inadvertently send someone into Ventricular Fibrillation,
which means, your electrical charge was given when the heart
muscles are repolarising (relaxing), and the wrongly-timed
electrical charge triggers the bottom half of the heart into some
sort of abnormal spasm! 
The whole process is a lot more complicated than what you watch
on TV! 
