1) I had a professor once who said, "Eating is the most intimate thing you can do with your clothes on." You're taking something into a bodily orifice and accepting it, trusting it. Supposedly it brings people together. Like sex.
2) Hate-fucking. Common occurrence. People that hate each other bump uglies.
3) If two people hate each other, and they eat a meal together, what happens? Is it the same as hate-fucking? Like, some physical satisfaction, but also something frustrating?