I was thinking of that the last time the subject of opening cartons came up.
Paul Hogan had a great skit about how to open containers. It started with a package that was difficult to to open and he got a razor blade. That resulted in some blood being spilled. It didn't stop there...
I don't know if the show was carried in any other areas outside of NYC. It was either on WNYC (13) WOR (Channel 9). IIRC correctly it only aired late as it wasn't suitable for all audiences - even in the NY metro area. LOL.
This was before Hogan became famous in the USA with Crocodile Dundee.