You’ve just spent an evening with friends and family. Turkey bones litter your kitchen and the entire pumpkin pie you’ve eaten is gathering around your midsection. That can only mean one thing: It’s time to go shopping. For some, Black Friday is an extension of the Thanksgiving holiday, where families all put on their coats and join each other in line at Best Buy to maybe land the latest deal and have some fun. For others, it’s a serious night, one that brings out the worst in people in a bid to save money. From long lines to thrown elbows, it’s best to be prepared.