Remind me of the name of our board "law" about correcting grammar/spelling

I am trying to describe, in an e-mail, our board “law” that says:

“Any post correcting the grammar or spelling of a previous poster will itself contain a grammar or spelling error.”*

I am completely brain-farting on what we call this law.

Help a Doper out?

*And do I have the wording right? Curse this search function that won’t allow me to search a 3-letter word!

Godears Law

Gaudere’s Law

Thanks!

Some other places call it Muphry’s law.

We just had a thread about it.

Specifically about Muphry’s Law, but Gaudere’s Law was mentioned, too.

It was named after Gaudere who came up with it, she’s a Moderator (although she’s not been active recently.)

I think that’s why I forgot the name. I knew it was named after somebody here, but I hadn’t seen them post in a while.