Drugs, money and valuables. That's what they go for. Also, they happen more frequently than you hear on TV. They are happening all in and in annexed cities around the Houston area. I know of at least two in surrounding small towns. Sometimes they ring the doorbell and pose as utility workers, postal carriers. Some cases they were posing as swat team making family members think they are cops. Most cases, they just tie up the victims, rob the place and leave. There are the occasions when they kill the residents. I don't plan on taking my chances, so I keep a pistol and scatter gun near. They would have to kick in my door and walk down a 40 foot hallway... if they can make it down that hallway.