Flies such as bees and wasps send more than 500,000 people to the emergency room each year. Bees are aggressive insects that will fly in front of people who walk too close to their nests and will often sting. They tend to nest near unfinished wood such as window trim and decks, causing problems for homeowners. Wasps are more aggressive than bees and the hornet, a type of wasp, enjoys nesting inside walls of homes. Bee and wasp stings can be very painful as they release venom into the body and can be deadly if a person is allergic to the venom. Bees and wasps can be a problem whenever they decide to nest near a person’s house and should be removed as soon as possible.