Just a warning: in Texas, the “look at the gun in my waistband and give me your money” method is now very risky.
I was thinking that. Unfortunately, Houston has its share of hard-cores who use the "point the gun at them and shoot them anyway even after they hand over their money" method. That's what happened to the New Orleans off-duty cop who was murdered in Houston recently. And that cop wasn't in a bad neighborhood--he was having dinner on the patio at Grotto, a nice restaurant in the Galleria district.
The problem there is that we have too many of those walking the streets. The punk who murdered the New Orleans cop was a documented gang member with a lengthy violent juvenile record and was out on bail for an aggravated armed robbery arrest from just a few weeks before. Bail was only $40,000.