Why are boys so dumb?

Okay so whenever my neighbor's (boy) friends (boys) go over to his house, they always act so immature and weird, like mock what I say (yes they over hear my conversations at my house), or screaming profanities, they always peeking over and seeing what we're doing, or commenting on what we're doing, his friend even tried to knock me over today driving like a maniac. This is really starting to annoy me, what should I do?