Nothing pisses me off more when I am talking with someone and they take their phone out to check a notification or people using their phone during a conversatio

Nothing pisses me off more when I am talking with someone and they take their phone out to check a notification or people using their phone during a conversation or meeting. Once someone pulls their phone out, I stop caring about the conversation, meeting etc... While cigarette smoke gives me a headache, I would actually prefer someone pull out smoke as I know they are still engaged in the conversation or meeting. Social media in my opinion is an oxymoron.