Your mother has sent you and your sister a photo of their dog, and expects you to reply with a positive note back. But you have an Android device and you're using Google Voice. You get the message, but you don't get the photo. Your mom gets mad that you've not replied. You say it's because she's using iMessage and photos and videos won't be sent to devices unless they also have iMessage. She tells you to get iMessage. You can't get iMessage, you have an Android device. You see where this is going.