I think it’s reasonable to expect that water will not be boiling hot when you turn on the shower. This is not a case of the law gone wild. Jurors in the 19th century would return this verdict.
Ah... you must live in a city, where shower water isn't boiled. I do too, sometimes. Jurors in the 19th century would be appalled at having to answer a summons for something like this.
And if you don't believe me, come live with me for a few weeks. You will appreciate hot showers afterward, and be smart enough to check the temp before diving in, should you survive.
I like you, you can call me Technical Sergeant.
/johnny