Ideas for future manhunts?

They've been fighting in trial chambers and i noticed that no one went for the dispensers. They have splash potions of weakness there. It could be real useful in the middle of a fight.

Also, I had a bundle in my inventory and found a singular diamond in a chest so i picked it up straight into the bundle and I didn't get the achievement. Maybe he could hide the fact that he got diamonds until he actually has to use them? I'm not sure if that would be useful, but I thought it was cool.