parasites

After our talk of parasites in class today i have to wonder why parasites are considered bad. harmful, i understand, but why bad? they, like tony said, are eating next to us. they are living.

i find it strange that we consider them bad because we are harmed by them when we do an awful lot of harm to other animals and yet we think it good. why is it good? because usually we use itfor food, for sustainance. how is a parasite any different? we don't give anything to those we kill and eat. the parasite doesnt give us anything good while it feeds off of us.

we have the know-how and the brain power to prevent and destroy a possible parasite that is feeding on us, that perhaps justifies our ill-will toward it. we are the superior beings, how dare it feed on us?