I give it a quick visual inspection. Unfortunately some pigs piss all over everything or leave their dump floating for me to flush as if it's something they are proud of. One woman's room looked as if someone had decorated the stall with her tampax drippings, so pigs aren't exclusively male. One thing that is really disturbing is to set your purse on the floor and take it home and park it on the table or kitchen counter, now that's really problematic!