Wobble-be-gone

I just read this in passing on some web page - I don't even know where it was or how I got there, but it was a suggestion to stop a table from wobbling such that it didn't require a shim. I dismissed it outright, thinking the solution was nonsense, due to its sheer simplicity. This morning I tried it. Well I'll be........ it worked. All you do is rotate the table somewhat - until it stops wobbling. And it will. With a square table you may only get away with rotating 90 degrees at a time. Otherwise it may look dumb.