Original: Never sell no crack where you rest at; I don't care if they want a ounce, tell em bounce.
Translation: Only deal with large, dependable markets. It may be tempting to earn some quick revenue by taking advantage of a small but convenient market in the short term, but this will be detrimental to the size and quality of your customer base in the long term.
Good Lord, this is hilarious. Nice to be in at the beginning of a meme...
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.