You are working outside of the ISS (international space station) to fix an antenna.
Suddenly you notice that your tether is no longer connected to your space suit.
In your disbelief you accidentally push off of the space station, and you are now ‘floating’ away from it.
You try to steer yourself back to it, using your propulsion system, but you fail.
You have oxygen for about 7 hours.
The space station gets smaller and smaller.
There’s no way back.
You are doomed.

What do you do?
Let close to 7 hours of oxygen escape and be done with it (that’s, life).
Or will you contemplate your existence for the full seven hours?