I used to cashier at a grocery store (a few, actually) in my college days and I would get peeved, too, when the food stamp people came in and bought all their fabulous groceries. One time, a lady tried to purchase cat food with food stamps and when she found out that she couldn't, she turned around and bought cans of tuna for the cat.
Over time, I've realized there is no prize in that life what-so-ever. It doesn't make me mad anymore because I don't want any of that. I'll continue to be free and depend on myself and my husband for our needs and not the nanny government. Excluding those that may truly need that help, I don't want any association with those that abuse the system because they are deserving of what they perceive everyone else having without trying to work for it (again, I exclude those who have truly fallen on hard times).