Do you remember any of the corollaries to Sturgeon's Law?

Question

For the benefit of the young ones, I have mentioned Sturgeon's Law here many times, and described it most times. Now, for those who have known it for awhile, perhaps through science fiction fandom, do you remember any of the corollaries that went around the convention circuit? Or have you written any of your own over the years? My only one is Sturgeon's Law of Advertising: 99.99. . . percent estimate.

Answer 1

"Nothing is always absolutely so."

Sturgeon's Revelation is sometimes expanded as follows:

The Revelation: Ninety percent of everything is crud.

Corollary: The existence of immense quantities of trash in science fiction is admitted and it is regrettable; but it is no more unnatural than the existence of trash anywhere.

Alternative phrasing
Sturgeon's Revelation is often cited using crap or **** instead of crud. The percentage figure also sometimes varies, having been in print as "94%" and even "98%".

Very rarely, a more optimistic second clause is added, "...but the remaining 10% is worth dying for."

Answer 2

The only law I'm aware of concerning sturgeon is you must have a fishing license to catch one, and they are perfect for the Bar-B-Q with butter, green onion and parmesan cheese. Salmon too.