Usually it's just I need a lil' bit more time to make it even better than it already is. Works a charm and they will never know the thought of doing it hadn't even crossed my mind until I remembered we had homework when I get to school!
I actually had my dog chew up my homework once...my teacher didn't believe me until I showed her the mangled exercise book with dog pawprints and teethmarks, and then couldn't stop laughing for the rest of the class.
something related to a technical difficulty like 'my usb stick only has the first draft on it' or ' can i print it off after the lesson and give it to you later ' ahem... works for me anyway!
oooh and handing in the wrong essay 'by accident'
I've turned over a new leaf in life and no longer believe in pens, paper and computers. They are the new sins of our time.
I used "My mum hasn't printed it off for me"
At school i was a goody goody and could have got away with saying anything really
My dog once ate my homework diary, he took a chunk out the cover!
I once told my teacher "I did my homework in my head, I didn't realise we were supposed to write it down.' and got sent out for being cheeky. Thing was, I was being serious! I honestly didn't realise she wanted us to write down a sentence!
"I've got coursework to do (i do) and I only need a D...I've realised what my priorities are."
We once made a powerpoint presentation on the tudors with each slide full of wingdings text with the odd picture of henry viii, and told our hugely computer-illiterate old history teacher that the file must have corrupted... did this 2 lessons in a row, never had to do the presentation
I also used to bring 'work' in on floppy discs to print out in the lesson knowing full well that none of the computers in the school have floppy disc drives!