The only thing even close to this that I've heard of is the "match stick" trick, whereby you run an over-honed razor over a match stick to dull it back down (i.e. break the foil edge) and restart honing from scratch.

As for what on earth you can glean from running the razor over a toothpick, well, the only thing I think you could conclusively glean is that now the razor definitely needs honing!

Mark