Jonathan - we're not here to help defraud anyone - if the liquid spill was enough to damage your machine - [http://appleinsider.com/articles/08/10/15/inside_the_new_macbooks_lsi_battery_hd_and_ram.html|Apple will] be able to tell. The sensors do get moved around, different colors are used, and some are UV (non visible in "normal" light).
Liquid spills are not covered under warranty
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