My hostess can touch-type without even looking at the screen. To test this, I declaimed the following as it came into my head:

How much is that doggy in the window??

The one with the belchily tail?
How much is the square root of an irrational number?
I do hope that surd is for sale.

She was looking at me all the time. Her only mistakes were the repeated question-mark and double-return at the end of the first line.

I’ve already lost count of the times I’ve had to correct my typing in this entry.