re: #146 fern01

I had a friend ended up in hospital due to an overdose of water. Someone told her to drink 6 liters a day - from the intertubes - this is what happened

In rare cases, drinking an extreme amount in a short time can be dangerous. It can cause the level of salt, or sodium, in your blood to drop too low. That’s a condition called hyponatremia.it’s very serious, and can be fatal.

Also wiki - en.wikipedia.org

So tell them they CAN overdose.

Edit: I should keep reading before posting - many others got there first with this reply

It’s not a contest and it never hurts to provide more examples and a little more perspective on an important subject.