Tiny bees? Bees don't usually harm people unless you, say, throw a rock at them. I tried to when I was little; I ended up smashing a window. Haha. I see why people fear bees though. Especially, African Wild Bees. They're all poisonous. I guess, the yellow jackets where you're located at are more vicious.
Where I live, yellow jackets are wasps. Vicious, angry and huge, wasps. They are nothing like bees, these are not afraid to sting you.