Go straight home and do as little as possible for the rest of the day, and the next. Do as little walking as possible for a whole week. No sports! No yardwork! No horsing around with the kids! Nothing! I mean it. Yes you can go to the bathroom but only if you absolutely have to (joke). Lift nothing over 15lbs for the first two days, and nothing over 50lbs for the first week. If in doubt, don’t do it! You can increase your activity gradually day by day, but remember to always err on the side of caution.