Good line, but it's got a short shelf life.

Ms. Abstract Citizen and a friend made an ice run during a barbeque we attended yesterday.

Homeless guy: I'm not asking for money, but if you buy me some food, I wouldn't say "no."
[they enter store, purchase ice, and leave without purchasing food]
Homeless guy: No food?
Ms. Abstract Citizen: Sorry...
Homeless guy: You're probably voting for Hillary!!