I'd be making love to my woman while high on Molly, Coke, Marijuana while a Trey Songz album bumped in the background. That what I'd if I had 15 minutes left to live.
I'd likely be in my bed, holding my Pinkie Pie plushie and pondering on how much I dislike the corruption of humans, whilst listening to Twinkle Twinkle Little Star of Dead Space. (Inevitably leading to thoughts of death for humans)
Then contemplating on the Universe in my imagination.