Attempting to go shopping on a Friday night is a huge mistake, especially during the Christmas season! First off there are way too many people in the large big box stores during this season in general. However, it seems to me that this time of year Friday and Saturday nights are especially used for a source of entertainment at these venues. This makes getting through the isles extra tough. leading a person to be extra cranky!
Secondly, the other challenge is not being able to fulfill your shopping goals because you end up running into ever Tom, Dick and Harry you know. And while you could just ignore them and pretend you did not see them this would make life just a little more difficult down the road when actually do need to speak to them. Therefore it is better to just take that extra five or too often 20 minutes out of your shopping and clog up another isle in the store chatting- like so many other people do.