@Jwm_in_sb - It's very relevant. You cannot assume errors simply result in "no action / no harm" the remainder of the way through including in the body when the injection is taken up.

Some combinations of errors may indeed cancel each other and thus result in "no action/no harm." But if there are combinations that can become multiplicative you can wind up with REAL trouble, and adding a biological process in the target (the person injected) at the tail end means you better be damned sure that whatever product of errors you have does NOT result in their body doing a bad thing with it. If it does the person who gets that lot is ****ed.

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