Depends how the end was to come about i suppose.
I mean if nuclear war was imminent i'd have some idea it was coming.
So i'd probably borrow a car and try and get to see my children.
If it were an impending 'moon about to collide with the Earth in three days and wipe all life forms out' kinda deal, i'd do the same but go see a few folk i'd like to say goodbye to first.

Have several blunts on the roof

Sleep. I tend to get sleepy at nights.

One problem ? You never know when its your last night

Watch a movie

Rob a Threshers, drink all their wine. Only if I'm totally sure it's the end of the world though.

Cry.

Find a certain someone and beat them down.... ┬┴┬┴┤•ᴥ•ʔ

touch my celeb crushes ass nah jk but idk

Block you. Lol