Sleeping/sleeping on people.

Maybe you find the rattle of metro noise soothing. Maybe your mom used to drive you around the block a few times to get you to go to sleep. Whatever the reason, it's not really your fault if you fall asleep on the subway. If you drift onto someone's shoulder it can be weird, but also a little bit cute. Free pass.

Rating: 1/2 out of 5 Rat Kings

Making prolonged eye contact with strangers.

It's fine to make eye contact with someone on the street, in a store, or in your house. Such eye contact is fleeting and usually accidental. When you make eye contact on the subway, neither of you can escape and you're stuck thinking about the eye contact you just made with someone who is STILL RIGHT THERE OH GOD.

Rating: 1 out of 5 Rat Kings