I vaguely remember from college, years ago, that there was a harmless chemical that you could give to someone that made the piss blue!.........
I knew some chemistry majors would say the same. If someone was stealing their ice cream from the community freezer, they would salt it with some copper related item. There are now web sites for Methylene blue and other ‘safe’ chemicals that will do the same...bad prank, especially in today’s environment.
a harmless chemical that you could give to someone that made the piss blue!.........
We grew some beets last year that were exceptionally delicious! I love beets!
They had extremely powerfull red pigments.
https://en.wikipedia.org/wiki/Beeturia