I saw this on the BBC News website and rather than wondering what will happen to my poor little toes tonight, I instead wondered whether I have ever warned somebody over somthing. About: yes. Over: not that I recall.
So far as I can tell warning over is pretty much peculiar to British news; in America reporters still warn each other about things. There is, though, more that unites our two great nations than divides them: a love of liberty, a dream of justice, and the fact that warnings are always issued, and usually stark.
Cassandra issues stark warning over horse