According to some of these guys if you got home and found a guy dressed in black with a mask on in your house, you wouldn’t be able to hold him at gunpoint until the police got there. Why? Because unless he was carrying a sack of valuables on his back, you couldn’t prove that he was guilty of anything other than criminal trespass. And therefore, since he wasn’t in the act of committing a felony, you would not be entitled to make a citizens arrest.