I cannot believe this is real, but I saw it on Discovery Channel, so it must be true. The Fridge Pig has a recordable chip in it that allows you to record a short motivational message. When you open the fridge, you can have it tell you to eat healthy.
Personally, I would buy one and place it it my medicine cabinet. The next nosy SOB who goes "investigating" will get hit with an obscene tirade.
And, according to the ad, if you buy two, you get a third free. That's one for the fridge and both medicine cabinets!
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.