[afraidfortherepublic]

FTA: It lies largely with two or more generations of indulgent and misguided educators and with the political guardians of education.

I might add, **and with parents and other adults who accept slovenly language (and use it themselves).**

The there and their errors I'll lay/lie at the feet of Mr. Bill Gates and his spell check machine.

[NYer]

The there and their errors I'll lay/lie at the feet of Mr. Bill Gates and his spell check machine.

Don't forget .. they're.

[Tax-chick]

You will lay the errors upon Mr. Gates’s feet. Lay: to put or place. Lie: to rest or recline; deliberately to speak falsely.