Did you feel that too?

Last night we experienced an earthquake, which I promptly forgot about until it was mentioned to me this afternoon. There was a small tsunami as well, evidently, but it obviously did not hit us. Its good to know that the warning networks are in place and we will all be given ample notice in the event of an international superdisaster. I'm horrified to think I may be left behind in the looting that would ensue.
The other thing I noticed today was a distressing misuse of runneth. As in the stupid blackboard outside Etrusco. Feeling the pinch? Let your cup runneth over which makes no sense to me, because I always regarded runneth and -eth as an oldfashioned substitution for the suffix s, used only for third person singular conjugations of verbs. And only on special ye olde occasions at that. Does let your cup runneth over qualify for that? Sure, the cup does the runneth, but you let it. Or are they saying let in the "I'm putting this out to the universe sense"? These are some tough questions but I am still unhappy about the phrase.
Besides, runneth is not something you just let happen and definitely not at a restaurant. Basically the only phrase in which the word sounds natural is that old saw "my cup runneth over". Restaurants re not known for overfilling vessels and it would be pretty stupid to just keep pouring. Overabundance is messy, and frequently sticky and unpleasant.
I looked it up in a dicionary and I was pleased to see the definition. It had a real mechanical sound to it, and I heard a mechanical voicebox reading it in my mind. I have more than enough for my needs. Oh fine I'll admit it. I heard Stephen Hawking saying it.
Then I got frustrated, because I heard a pop song the other day with a ridiculous misuse of the word thee and now I can't remember what it was. It was on C4, so I've got a limited playlist to choose from. Reader submissions required so I can get medieval on the bad grammar perps.