Personal hygiene is important.
Mark just got home from working in a sewer and his wife tells him he is dirty.
Mark wants to take a shower.
Mark uses antibacterial soap and scrubs his entire body in the shower.
Mark gets into the shower and only showers for five minutes without soap or scrubbing.
Mark and Mark's wife are happy he is no longer dirty or smelly, and they spend time together.
Mark's wife notices he is still dirty and smelly and refuses to sleep with him.