seems a bit odd (spoilers)
Francis is determined to kill Eric until Eric says (I paraphrase) 'I was the one who found your daughter!' (which would surely sound unlikely, and for all Francis knows is pure fabrication) at which point instead of plugging the sonofabitch Francis decides to give him a big hug. Somehow this doesn't seem all that plausible to me, but maybe I'm missing something. Anyway, the clear moral of the story is: when you're going about your business in a lavatory cubicle and a complete stranger tries to engage you in conversation, resist the temptation to respond.
"I beseech ye in the bowels of Christ, think that ye may be mistaken."