If the call drops out while talking to the mistress the man calls back. It probably dropped out for a reason.
If you state that you are entering an elevator it is assumed that your reception dropped out and you must at minimum text back.
If you miss a call from the ex during the day you may call them back. If the call is after 11pm, they’re drunk! Don’t
If someone leaves you on-hold for over 2 minutes you are entitled to hang up. It is up to them to call back.
If at any point you mention that you are low on battery it is assumed your phone died and you must at minimum text back.
If a person calls you every night complaining about their life, on the third night in a row you are entitled to hang up.
Never answer your phone during sexy time with a loved one. Miss the call and call back later.
It is unacceptable to make a call in the restroom, but is acceptable to answer as long as it is limited to under 10 seconds.
If a guy / girl calls you ten times in 24 hours it should set off alarm bells. Never call them back!