I think the problem is that the guy in question is a moron.
I looked up bending copper pipe with the sand method and it has to be a fine sand. Using the sand with rocks it in wouldn't have worked at all. This has nothing to do with S/N.
Dur, take out teh rokz? I dun no wut u meen. You don't have to have an N's godlike intelligence to know what a fucking sifter is.
I'd better get back to picking my nose and eating glue cause this intarweb thing is just too complicated for my tiny S brain.