So I've been in a discussion with a friend of mine about pet peeves and this one comes up.

Let's say somebody is brushing their teeth yet has the faucet running allowing water to be wasted down the drain.

Or somebody starts the shower and leaves it running all the hot water for 10 minutes before ever getting in.

Another one is leaving water on while washing dishes by hand. You can easily fill one side sith water and the other side empty and leave your clean soapy dishes on the empty side and rinse all at once instead of letting water go down the drain while you wash then rinse, wash then rinse.

Or if you work in a kitchen and whoever was in dish pit decides to leave the faucet on...

I get some people aren't bothers by it but HOW?