A crowd of angry teenagers and their parents are accusing police of jailing many innocent bystanders during a raid on a west Houston parking lot where youths apparently congregate. About 425 people were arrested for criminal trespassing after business owners' complaints, but some of the youths say they were just there to shop or eat at a drive-in and have receipts to prove it.
...all the patrons at the Sonic were ordered by police to march to the Kmart lot, where they joined throngs of other people who were being arrested...
The stories don't have a full police/kmart/sonic side of the story, but I find it hard to believe they can come up with any reasonable justification for this kind of behavior. Most places that try to discourage loitering post signs about having "30 minute parking for customers only," etc. Others have private security. I am all for keeping public order and telling those damn kids to quiet down, but I have not seen a legitimate reason to perform a mass arrest.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.