Reminding me of a classic exchange from a CS class I took once (OK, the CS class I took...):
Student (slightly paraphrased): you mentioned that the address after the last member of the array is guaranteed to be a legal address, though you don't technically have it allocated to you. Don't a lot of people use that fact to just pretend their array indexes are 1-based instead of 0-based?
Professor: Lot's of people J-walk, too! Some of them get killed!
Ah, those were the days... ;-)
If God had meant us to fly, he would *never* have given us the railroads.