Spilled water on Macbook Pro 13 inch, early 2015 I've spilled 5-10 mL of liquid on my Macbook Pro (13 inch, early 2015)  some hours ago. I purchased this laptop a few months ago. It has 16 GB of RAM and 512 GB storage, though this is probably irrelevant. The liquid came in contact with the trackpad (including the edges of it). I did not turn it off. Rather, I ran the Apple Diagnostics Test and it came out fine. Several hours later, I ran the diagnostics test again and it was fine. The laptop, including the trackpad, is functioning normally at this moment.


  What is the likelihood that the laptop, particularly the trackpad, will develop problems in the future? 


Also, 


  Is it worth the time to go to an Apple Store and get this checked out? 


Normally, I wouldn't even ask; I'd take it to the Apple Store just in case. However, I am very busy this weekend and a visit to the Apple Store will take a good 2 hours of my time, at the very least. Resassurance from experts on this site will give me peace of mind. 

Moreover, I would also appreciate a comment from people who know a thing or two about the hardware of this laptop model regarding how 'water protected' the trackpad structure is. I am, again, mainly worried about liquid having leaked through its edges.
You won't know anything until you take it apart, that is the sad truth. In the mean time, keeping it angled with the vent up and the trackpad down will hopefully make any liquid that got in stay away from the motherboard until is evaporates. If any corrosion is happening, you may not notice until an electrical connection is actually disrupted by it.