whats the most strangest thing you have seen in public

I was at safeway, waiting patiently behind a little old lady for my turn to reach in the freezer for a tub of ice cream. Walked away a bit trying to not be too obvious... next thing I know, she pulls one out (5 qt plastic tub) sets it on the ground and steps on it to look at the top shelf.... that was not high enough so she pulled out another one and set it on top of the first one and started to lift her foot! At that point, I thought she was going to hurt herself or something so I went over and asked her if I could help her...