define tiny bit of water
i've spilled entire glasses of orange juice on my keyboard before and honestly all i did was wash it completely so nothing would stick and just let it airdry for a shitton of time, and it still works perfectly. honestly if you disconnect it and leave it out overnight to dry and you still find things glitching you could try the whole dunk it rice thing to make sure it's dried out completely.
book dropping i'm not so sure :/