I'd be disgusted and ofcourse demand a refund and let the management know they need to keep insects out of their food. But to be honest I'd almost rather have a cockroach in my eggroll than a huge clump of hair... I've had a clump of hair in my food at an Italian restaurant once and I never wanted to eat again. Maybe that is just me but I'd rather have an insect in my food then hair/a finger nail/or something from a human that could be even more disgusting. I just lost my appetite