Opening the vault door, seeing your first half-robot/half-mutant, and trying to figure out if it's real or you're just high on Vault-Tec Patented Meat Slurry again:
Fun fact, the Stanford Prison Experiment was actually kind of a joke! Zimbardo really wanted the result that he got, and interfered with the "study" to ensure that he got it. People aren't as easily predisposed to evil as he wanted us to be.
Like the one that was opposite was fucked, a one woman can only become pregnant and give offspring to one man at a time. But the one with one man and like 99 women he could make multiple women pregnant, his offspring would be inbred but I wonder if they could be viable for long term