i have to tell them to 'back off' in a firm voice and keep hand on glock in case they rush me. Once someone gets in your personal space - and they're gangly, starved, sick, goodness knows what - you've already half lost the fight.
Keep your space. "I can't help you. I CANT HELP YOU". They know that the other 99 out of 100 people they ask will politely help, or decline. The last thing they wanna do is go to jail by harassing the one a-hole who will not allow them to get that close. I've never had a problem since I've been a grown ass man. The firm voice, the hand on back of hip, and the hand extending with the halt sign. Nothing personal, I'd love to share my lunch with the dude... but there's a chance he will get close enough to accept a buck, and stab me. I just don't know. Poeple do some horrible things. I would like to drop a dollar and tell him to retrieve it after I'm gone, maybe. That could work. sorry man, I just dont know you, and I cannot allow you in my space, as I would never violate yours either. Good day.