iphone in toilet, but have found a solution
My 8yr old dropped the phone in the toilet andit stayed there for at least 30 sec while she cried and tried to explain what had happened. So, I fished it out, dried it off, then wrapped it in a disposable nappy (diaper) that I first cut the inner facing from, enclosed it in an air tight container for 2 days, and it seems to have worked. There's a little pink dye on the fibre of the nappy, indicating that somehting came out of the phone, and I so far seem to have full function.
I had initially lost sound unless I plugged the headphones in, and had some screen flickering, but that seems to have resolved.