I've heard that there's supposed to be a total of fourteen episodes this season, so after this most recent episode, there will be only three more left to go. Anyway, on to the latest episode.
Is it possible to blow open a safe with high explosives without destroying the cash inside?
They started by simply blowing up an empty safe, and it was immediately obvious they may have used too much explosives. Back at the shop, a small scale test showed that when a high explosive is detonated, the amount of time when there's an active flame is four times longer in a confined space like the safe than out in the open. Next, using analogue cash (since it's illegal to burn real money), they determined the temperature at which the cash would start to burn, then added small scale cash to the small scale safe and the explosion turned out to be quick enough that virtually none of the case was damaged. Finally at the full scale test, the first explosion turned out to be too powerful as much of the (analogue) cash was scorched and shredded, so next they tried scaling it down (a rather odd occurrence for a Mythbusters final test) to just enough to blow the door off the safe, and amazingly virtually all of the (analogue) cash was unscathed (albeit starting to blow away in the wind). Confirmed.
Do dogs resemble their owners?
This myth was tested in three different ways. First, ten volunteers and their dogs were brought in, but who owned which dog was kept unknown for the test. A dog show judge was brought in to provide accurate descriptions of each dog, and a beauty pageant judge was brought in to do the same for the owners. Once all the details were recorded, they attempted to match the dogs and owners, but ended up getting only one out of ten right. For the second test (with ten different volunteers and their dogs), a police sketch artist was brought in to sketch human portraits based on descriptions of the ten dogs, then they tried to match the sketches with the owners of the dogs they were based on, but they got only two out of ten right. Finally, for the third test, ten different volunteers without a pet dog were asked to choose one of ten available dogs that they would most likely want to keep, then after attempting to match the dogs with potential owners, the volunteers choices were revealed, and only one out of ten picks were correct. Busted.