I want an app that I can open when I see an imminent, uncomfortable discussion on the rise. I want to open my phone and quickly activate a timer (while pretending to be texting) that will call that same phone at a pre-determined time - say in 5 minutes or so. Then I can stop the conversation, answer the phone, and walk away. What would really be sweet is if it began playing a recording of my chosing through the ear piece so that the other person would be truly convinced that I was on the line with someone.