Jump-starting

[thumper_svx]

Okay, this might seem a REALLY dumb question, but what's the correct procedure for jump-starting a car? I was always told;

1. Connect + wire to the + terminal on the "working" car
2. Connect + wire to the + terminal on the "dead" car
3. Connect - wire to the - terminal on the "working" car
4. Connect - wire to a piece of bare metal in the engine compartment of the "dead" car.

I ask because everybody seems to have a different opinion on this... the procedure I list was taught to me years ago and I've never forgotten it... and it works... but I just want to make sure I'm doing it right so I don't cause damage to anyone's batteries... not least of which are my own