Checking your phone or tablet in bed.
I'm not talking about streaming Netflix or checking Twitter before you get some shuteye. I'm talking about even glancing at your phone or tablet while having "adult relations." If you’re more interested in what's happening on social media than what's going on in your bedroom, you might have a problem.
Talking loudly on a bus, subway or anywhere in public, really
So you broke rule number six and you're officially single again. That doesn't give you carte blanch to have long, loud conversations about your breakup on the bus. Everyone else is either sitting quietly or trying to sleep. Even the people having conversations are at least trying to whisper. Just because you're talking into your phone doesn't mean everyone around you doesn't hear you.