Comment Re:STR("NULL") != NULL (Score 1) 106
I find this story a bit far-fetched.
Null is a word used in everyday English, particularly in the office. It's entirely plausible that an email/memo/company training/piece of paper taped to each monitor said something like "If you don't have the number plate, type NULL." And with any manual process, there are likely variants like "NIL", "NA", "", "NONE", etc