Everyman should develop a really good front or side kick
If any homeless man is acting aggressive and walking towards you give him a hard kick in the Solar Plexus
You can drop him before he is in range to stab you and and almost no chance he dies from the kick
If you are on a date this will also make the girl want to have sex with you
Your life is empty without fears.
Thats why they exist.
So you can ignore them and ACT anyway.
If you were afraid of nothing, then nothing at all would matter.