Manners missing.

Yesterday, I went grocery shopping at Walmart. As I was checking out the woman in line behind me started yelling for these people who were walking by the line. Instead of waiting for me finish paying this group of 5 people shoved in around me and virtually pushed me out of the way. These were not children or teenagers but middle aged people! The conversation that was so vitally important centered on CDL training and where the woman's husband might find it in our area. Is it just me or are people just getting ruder and ruder?