You know, someone sitting next to you in a seat -- that's OK because you're in a theater, but if you were sitting on a park bench and someone came up and sat that close to you, you'd freak out.
Quando qualcuno si siede di fianco a voi -- va bene a teatro, ma sulla panchina di un parco, se qualcuno si siede molto vicino a voi, la cosa vi fa impazzire.