Don't tell me this is coming down to morality and an issue of religion too. Your responce was cute but the fact of the matter is that Rainer's post is relevant. To insinuate otherwise is absolute bovine feces.
Remember that animal’s speciate because of breeding barriers. Many of these barriers are external to the animal and are only a function of the various ecological niches animals inhabit. The reason many snakes will hybridize in captivity is because those barriers are broken down. Environmental disturbances can break the barriers down too. In the event of natural disaster the playing field is leveled and any given species losses its advantage when the niche it evolved to fill is altered. When this happens specialized animals are pressed to become generalist in order to survive. In this context, I think hybridization is VERY likely. In the case of Rainer’s example the disturbance is likely human impact but climate change, fire, drought, earthquakes, loss of prey species………are all natural disasters that could and likely have been pressing otherwise reproductively isolated animals into swapping some genetic material for millennia.
If this very likely scenario were true it would mean that current notions of purity are completely shallow. People see herpetofuna as static when it’s most likely that what we see now is a mere snapshot of the evolutionary process. Regardless of how well we love our "pure" stock we've got to admitt the very real possiblility that there might be a little pituophis in the wood pile. Don't bite my head off for saying this Sean but I always though goini looked a little pit-ish.