As the news programmes continue to be full of COVID-19 outbreaks (Italy is another interesting development for those of us watch through (vaguely) professional eyes), the weird and wacky ideas around the virus, where it came from and how best to avoid it have also continued apace.

Not many of the layman hypotheses I have seen have any real substance, but at least some of them warrant some research, time and effort to explain and/or disprove.

Some others, however: