I just knocked a glass of water on my 2015 MacBook Pro keyboard. I had fallen asleep 2.5 hours ago listening to a video with the screen brightness turned completely to dark so as to save battery. I don't know how to tell if the computer was in sleep mode or if the battery had run down and it was/is off. I think if it's in sleep mode I should turn the power button to off but I'm concerned that touching the keyboard to bring it out of sleep mode and find out whether it's in sleep mode or no longer powered could damage it and I'm concerned that if it's already off hitting the power button will attempt to turn it on with whatever might be left in the battery.