Bonding...!?

[ppppenguin]

Poorly thought out bonding can actually increase the risk of shock. An example. A metal kitchen sink fed via plastic pipes. There is a high resistance between it and anything else metal due to the water. Hence current regs say don't bond. If you manage to touch it at the same time as a live part there will be a minimal shock risk. If it was bonded you'd get a nasty belt until the RCD tripped.