As a teacher, I could write a book about the excuses kids made to me and colleagues over the years about why they have not done their homework. A lot of grannies died, and many cats run over- and aliens, lots of aliens - but they were just kids ... and that homework was not going to make much difference either to me, them ... or the country- so....
"David, have you done that homework?"
"Yes sir, but it's a bit messy, I need to prepare a fair copy."
"Very well. Bring it next week."
next week
"David, where's that homework?"
"The dog ate it."
"So write it out again."
......
"David, have you actually done that homework?"
<very quiet voice>"No sir."