As long as you are in a group, you will be slaughtered. This is the rule of the game. If you don't let the tour guide kill small things, the tour guide will let you kill big things. Since you are in the group, don't offend the tour guide.

If you want to go on a self-help tour, you won't be killed. The price of self-help tour is high, and you will still be killed if you don't have a guide to eat and buy things. It will save a lot of money if you let the tour guide kill you.