Public Display Of Disgusting

My girlfriend and I were walking through Wal-Mart the other night and the couple walking down the aisle in front of us were probably in their early 50’s. The man put his hand down the back of the woman’s pants and pulled her underwear up, then shoved his hand down her underwear and was rubbing her butt. We were maybe 4-6 ft behind them. Eventually he looked over his shoulder, smiled at us and pulled his hand out. He then proceeded to run his hand under his nose. Nice.