Safe Cracking (Meta)

Here's another MEOW for you where the grid entries are all made up and the clues don't matter. That's right, the clues are like signatures on credit cards or bank websites that prevent you pasting your ID number - two excellent examples of security theatre! The answer to the meta is a quotation of dubious origins (whose line is it, anyway?)

Check out "The MOAT MEOW Mashup Pack" here: https://www.ephesusscroll.com/about/interest4.html. US$10 gives you access to 14 metas that don't always abide by the "rules" of the game. You won't quite know what to expect: asymmetry, 2-letter words, uncrossed letters, sometimes all of those, and sometimes none! One thing is for sure, these are some of the more creative metas my brain has been able to come up with. And there's more: this time there's a mega-meta!