My friend and I went out to see a film, and before entering the auditorium, I stopped by the restroom because my undergarments were giving me grief. I did not use the restroom, but I did take care of the annoyance. I did not, however, wash my hands.
Later after the film, my friend and I went out to eat. Hands still unwashed, I touched his food by accident. I asked him if he minded; he responded saying he assumed I had washed my hands sometime between the film and the meal (I had not). To avoid embarrassment, I simply did not answer.
The very next day, he started experiencing soreness with flu-like symptoms.
My question is twofold, I suppose. First, is it even likely that I am the one who got him sick? Second, would I have to confess to him the whole underpants scenario and the omission of the hand washing?