One would expect that to be a deterrent (unlicensed "doctors" who kill their patients usually face greater consequences than malpractice suits) but once again the fairly credible story that prompted this thread indicates it is not sufficient deterrent for everyone. Given that fact, caulk seems as likely a choice as super glue or cement (and not terribly different from Fix-a-Flat.) The style of presentation on 1000 Ways to Die invites skepticism, but they claim their stories are bona fide, while on yet another hand they also claim they change the names to spare the survivors families embarrassment (or, more likely, avoid suits and/or the need to provide said familys a cut.) That can make it hard to tell without doing some digging, but from what I can glean from glancing through Wikipedia and the MBs for snopes and The Straight Dope, it appears that whether any given story on the show actually happened depends on the story. Wikipedia says this:

I am not a regular viewer, but have seen a few episodes where they chronicled an urban legend AS an urban legend (i.e. "this is total BS, but this is how it would have looked.") Obviously it is fake when they tell you it is fake. This thread on the snopes board cites one story from the show that was 100% true (radium poisoning in Depression era industrial workers painting glow in the dark markings on clocks, during which many of them had a habit of putting the brushes in their mouths) another that snopes debunks in its typically exhaustive manner and another the poster considers impossible, but has not verified. That is probably representative of the show as a whole, which is also known to "punch up" the more mundane and unusual true stories to make them more entertaining (sort of like putting special effects in a snuff film, I guess.)