Can you explode a toilet by flushing flammables down the bowl then lighting a match? Do you get wetter running or walking in the rain? Can bullets made of ice really not leave evidence in their victims?

In this episode the Adam and Jamie test:
1)If it's possible to use an ice bullet to kill someone without leaving evidence.
2) if a toilet can explode by pouring a flammable liquid into it and lighting a match.
3) If it's raining, Is it better to walk then run in the rain?

Bonus: Jamie and Adam's building challenge:
Building a Unbrella gun