Be careful when raising the talk-end of your phone receiver to your mouth, lest you misjudge the distance and chip a tooth. There really should be a "hazard" sign on that baby.
No, you don't have to worry about hurting yourself on the job in the insurance sales biz. You will be doing a lot of sitting at your desk, sitting in meetings, sitting in your car on the way to meetings...so a lot of sitting. Watch out for leg cramps.