My husbands friends suck?

My husband has about 4 friends I cannot stand. They come over every night, unannounced without a call, walk in without knocking, and plop down and do what they want. They go open the fridge, play video games, and ask me if I'll make them something to eat. I've tried to be accomodating, but I was trying to have a nice night with my husband, and they just walk in. I was watching my favorite show, and they say isn't something else on? And "can we play a game?" I gathered up my stuff, and left the room. Im pissed, but I'm not a confrontational person. What do I do?! I need my life back!