Yes, Zak sending Aaron to investigate alone seems unfair some of the time but remember that they all are friends in real life and spend almost every day with one another, if Aaron really had a problem with what Zak "makes" him do then don't you think he'd just ask him to stop off camera or maybe quit the show if he cares about it as much as you guys do? Plus you can't forget as much as I believe and probably you guys do as well that it's all real and authentic, it is still a tv show so Zak and the others have to make it entertaining which sometimes can come off a bit crude. Zac probably has a specific sense of humor as well as being kind of messed up from experiencing this type of stuff for so long. Just be grateful they're still doing this and risk so much for the evidence they get every episode. They all love each other like family and wouldn't put one another in harm's way or danger. Just sit down and watch the show and stop over analysing everything. Zak is a good person as well as everyone else, they probably just have their own way of doing things. I respect everyone's opinion just my thoughts.