We do the best we can. Someone gets a reaction from a vaccine and all reasoning stops. We want there to be no problems from anything, anytime, anywhere.

The world will always have sharp edges. We deal with it and move on.

Do not put q-tips in your ear.
Coffee may be hot.
Do not place ladder on frozen manure.
Keep fingers away from fan.
Do not use hairdryer in bathtub.

They are never going to think of everything; We should just send lawyers a monthy stipend and forego all those lawsuits.