Make a list of tweets to be posted anytime in the future. Set a timeframe of normal waking hours. Randomly select a tweet from the list. Randomly select the day and time to tweet them. Give me a reminder 5 minutes ahead of time and give me a y/n prompt. Alternatively, a vigilance control. That is, stop tweeting if I haven't signaled that I'm alive/not comatose. Not like Buffer where time slots are pre-selected, and not like HootSuite where individual tweets are scheduled. It could use HootSuite to do the scheduling/tweeting, but the bot would have to choose the time randomly given the constraints above.