The average human being spends three years of life going to the toilet, though the average human being with no physical toilet to go to probably does his or her best to spend less. It is a human behavior that is as revealing as any other about human nature, but only if it can be released from the social straitjacket of nicety.
Every year I hear people complain that the quality of screenplays and movies is declining. In my opinion, the vast majority of scripts written - as well as most movies that are released - are not very original, well-written, or interesting. It has always been that way, and I think it always will be.