Reminds me of the (probably apocryphal) tale of some visitor at a computer fair. The chap at the stand in question was proudly demonstrating his 'voice interface' software...
"It does what you ask - you don't need a keyboard"
"Really? That's rather clever. Can you show me?"
"Certainly sir. Let's try this: OPEN FILE DEMO!"
"
OK"
"FILE PRINT"
"
OK"
And 'Demo' was duly printed. The visitor then had in idea....
"Can I have a go?"
"Of course, sir"
"Thanks. C PROMPT!" "
OK" " C FORMAT!"
"You bugger!!"