Some liquid has just spilled into your Mac. What should you do?
Do
Immediately shut down the computer and unplug the power cord.
Remove the computer's battery (if you can)
Disconnect any peripherals (printers, iPods, scanners, cameras, etc.)
Lay the computer upside down on paper towels to get as much liquid as possible to drip out.
Note what was spilled on your Mac.
Bring the computer into an Apple store orAASP as soon as possible.
Don't
Don't try to turn it back on. Liquids can help electrical current move about the components of your Mac in destructive ways.
Don't shake the computer (this will only spread the liquid around).
Don't use a hair dryer on it (even at a low setting a hair dryer will damage sensitive components).
How does this affect my warranty or AppleCare?
Liquid and spill damage is not covered by warranty or AppleCare (but may be covered by accidental damage insurance, home owners/renter insurance policies, and some credit cards). Apple charges pretty steep prices to deal with spill damaged Macs. Our prices are much more reasonable.
It was just a little liquid. How could that have killed my Mac?
It really depends on where the liquid made contact with the internal components. The tiniest amount of liquid could cause a logic board to fail. (The logic board is the main circuit board in your computer that connects to every part of the machine.) The logic board of a Mac is densely crowded with many sensitive components.