what weapon will you use if zombies invaded earth

the point is to see which weapon you will use if any unexpected visitors come

1 what is your characteristics
2 who would you be first to be aqquaintances with
3 how many zombies do you think you could kill from the top of a locked mall
4 how long do you think you could last without dieing
5 if your commrade turned into a zombie, would you kill him and how
6 if you were running out of food, and noone has died yet, who would you kill