JOHN'S COMPUTER HELP
This safety tip was written on 28 April 2018.
Aside from being a waste of tasty rice, putting your phone in rice is actually less effective than just leaving it on a table to dry: water can evaporate through air, but rice collects it and just keeps your phone moist. It also puts rice in your phone which isn't helpful for the various ports on the sides.
If you drop your phone in water, immediately remove it from the water. The less water that seeps in to your phone, the less damage that it will do. A bit obvious but worth stating.
Somewhat less immediately (but still immediately) remove the battery from your phone. If you can't do that, turn off your phone. Remove your SIM card(s) and SD card too. Flowing electricity and water create the problem, so you want to make sure your phone has as little electricity going through it as possible.
After that, dry your phone, battery, sim card and SD card with a towel. Then leave your phone to dry for a few days. Don't touch it or turn it on since this could push water inside the device, just let it be. Don't use a hair dryer or anything like that, it can damage components.
If you have money for it and live somewhere where phone repairers do it, getting the phone cleaned with an ultrasonic cleaner will help remove corrosion that could further damage your dry phone.
If you have any questions about this tip or suggestions for new ones, please contact me.