Scenario-
User A goes to wash a few dishes. User A uses HOT water. User A finishes washing dishes and turns water off, puts away dishes, and walks out of kitchen.
30 seconds after User A exits kitchen User B needs to rinse off their hands. User B turns on water to cold or warm and immediately sticks hand under water. User B gets a rush of scolding hot water they are unaware of.
A simple way of preventing this is if User A turns the water to cold before leaving the faucet, but they never do that… User B can also wait and test the water… but they never do that either… this is just one of those things.
Is it just me, or has anyone else encountered this?