Every bit of food you eat that you don't grow yourself is a chemistry experiment. Go to a restaurant? You have no idea where the food came from, how it was handled, what was sprayed on it, and who may have sneezed on it. Did the waiter wash his hands after he went to the bathroom? I worry about THAT. Take vitamins, drugs or supplements? Do you know where they're made and what's in them.....really?
Canned food - could contain harmful levels of zinc. How about some fresh salmon or tuna - could contain PCB's and mercury. Food in plastic containers - might contain BPA's. Grab a McBurger - way too much sodium and whoknowswhat. Maybe I should pull out all the copper water pipes in my house? I should definitely send my Tommy Copper compression socks back, eh?
Here's a list of things I worry about -
#1 - some idiot on a cell phone crashing into my motorcycle.
#2 - my parachute doesn't open
#3-499- almost everything else
#500 - tiny amounts of copper in my wine because it whipped it with a wire for 10 minutes.
Life is full of risks - some are just too small to worry about in the time I have left.