This is more akin to if you sold a fatty food in a supermarket and someone died from being overweight.
Radicalizing someone to do this isn’t a crime. Freedom of speech isn’t absolute but unless someone gives them actual orders it would still be protected.
Don’t apply UK’s lack of freedom of speech in American courts.
Now lift it up 11 more times. You’ve done a set… do it four more times, move on to the next object.
(I think OP is more talking about thinks you can’t bring to a scale)