He was one of the least offensive, but also one of the most defenseless. At least according to his profile, he had no skills to speak of.

I imagine Mr. Barnes could have managed to do the same to several of our number, but the more capable his victim was of fighting back, the more of a risk it would have been to him. It was a logical choice.

[ and they were roommates so he had easy access, but, like, he doesn't think he should point that part out ]