If it breaks, it needed replacing anyway. Anthony's Law of Force Don't force it - get a bigger hammer. The solution to the problem changes the problem. A taxpayer is someone who does not have to take a civil service exam in order to work for the government. All things being equal, a fat person uses more soap than a thin person.
Infinity is one lawyer waiting for another.
No experiment is reproducible. Whenever a system becomes completely defined, some damn fool discovers something which either abolishes the system or expands it beyond recognition. Spend sufficient time confirming the need and the need will disappear. People are always available for work in the past tense. When a distinguished but elderly scientist states that something is possible, he is almost certainly right.