Customers MacBook - liquid damaged keyboard
What a PITA. But with the help of ifixit's tools it's repaired and back in the customer's hands.
The 2010 MacBooks are the worst book we've ever repaired. We thought iBooks were unnecessarily complex. Nah. Next time it'll be faster though. Advise: Read the online guides for top case replacement BEFORE you reach for a screwdriver. There are some tricks.