Try correctig an ESL student

I understand how ESL students feel when they have their pronunciation corrected. Their reaction drives me crazy,though.

Here's the drill:

They say a word wrong.

I try to figure out what the heck they are saying.

When I figure it out and repeat it to them - hoping they will repeat it back to me - all they say is "yes."

I repeat the word, cuing them to repeat it after me.

And they say - Yes.

And in my mind I go, "Heavens help me."

I say, "You're supposed to repeat it."

They look at me with a blank stare.

I repeat the word once more, and signal to them with my hand,  "Now You".

And they go, "yes."

I collapse.