Can wet finger cause water damage on my phone (samsung s3)?

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http://androidforums.com – So i was wondering if my phone could be damage from finger being too wet. I pressed the home button earlier and saw like 2 droplet of water near it due to not drying my hands good enough after washing it. The phone is working perfectly fine atm but would like to know if this situation should be avoided or does it take alot more than that to cause water damage to the phone. (General)