Houston seems to have a bit of a problem with business burglaries. One owner reported 15 burglaries in a year. Some have chosen to spend nights in their businesses armed with firearms in an attempt to stop these incidents.
Could get ugly, but understandable. 25 years ago I was building houses and overnight burglaries and thefts (appliances, copper plumbing & wiring, tools, building materials) were a regular problem. More than once I have spent nights on a cot with a good flashlight, 12-gauge, and pistol, and captured several intruders. Quite a few got away; deadly force cannot lawfully be used in defense of property here in Colorado even if I were so inclinded. Even 25 years ago prosecution was minimal, felonies reduced to misdemeanors and probation ordered for multiple offenders (even those currently on probation or parole).
Couple of the bozos I caught were employed on the delivery trucks bringing my materials, etc, to the job site, then coming back to help themselves.
9-1-1 calls when holding felony suspects at gunpoint typically resulted in 30 to 45 minute response times. If I had no bad guys to turn over to the cops I usually waited until morning, then called in a report so the patrol officers knew what was going on in the neighborhood.
My alternative was simply absorbing the losses. My insurance policy had a deductible of $1000, so the first grand was out of my pocket anyway, and repeated claims just about guaranteed cancellation of the policy. Offenders included teenage punks, young and middle-aged dopers and career criminals, occasionally a whole family involved (the younger kids could squeeze inside a smaller hole than the adults, and under age 10 there can be no prosecution under Colorado laws).
Glad I don't own a business in Houston now!