[ozark hilljilly]

I cannot understand the mentality of those who actually want and demand a gizmo like that.

[Dem Guard]

I find it easier to tell the wife the water heater will run out of water after ten minutes. Then I turn off the hot water to prove it to her when she takes extra long showers. (She doesn't know it won't every run out of hot water.) lol

[FourPeas]

The only possible thing I can come up with is they have teenagers who spend waaaaaay too much time in the shower.