Being fed up with people asking to use my laptop (some 20 years ago), I cleaned its keyboard and put the caps back on at random. "Yes, of course you can use it,

Being fed up with people asking to use my laptop (some 20 years ago), I cleaned its keyboard and put the caps back on at random. "Yes, of course you can use it, here you are! Oh, sorry, I forgot the keyboard..." Peace and undisturbed working ensued...