I think most of us can relate to this:
I was having trouble with my computer. So I called Richard, the 11 year old next door
whose bedroom looks like Mission Control, and asked him to come over. 
Richard clicked a couple of buttons and solved the problem.
As he was walking away, I called after him, 'So, what was wrong?  
He replied, 'It was an ID ten T error.'
I didn't want to appear stupid, but nonetheless inquired, 'An, ID
ten T error? What's that?  In case I need to fix it again.'
Richard grinned.  'Haven't you ever heard of an ID ten T error before?''
No,' I replied.
'Write it down,' he said, 'and I think you'll figure it out.' 
So I wrote down:       I D 1 0 T
I used to like the little shit.