It surprises me that we don't have reliable self-cleaning toilets and bathrooms. We have people unwilling to do their bit to keep them remotely clean, and then others whose job involves cleaning up the excrement of others.

I can appreciate it's a difficult problem, but we have the means to change the design of the bowl itself and many other aspects. While there are self-cleaning pods in parks, I've never seen the approach taken to internal toilets.