I know I’m a little late to this party, but thanks to the magic of DVR, I just watched this episode last night.
On two of the myths, the team screwed up.
Earwax candle. While they did a good job of busting the myth that you could make a candle out of earwax, a la Shrek, they didn’t replicate the results. I suggest they repeat the myth and add some sort of oxidizer.
Sleeping Camper + Warm Water = Wet the Bed.
This is where they totally boned they myth. The myth is about a myth you pull on kids, not three middle-aged men who are in on the joke! They should have tested it on kids.
Now, there might be ethical considerations about experimenting on minor children, especially in light of the fact that this will lead to embarassment on national TV, but science ain’t pretty.