WithAggregate.cs

var catchers = new [] {
  Encapsulate((ArgumentException x) => x.Message),
  Encapsulate((InvalidOperationException x) => { Log(x.Message); throw x; },
  Encapsulate((NullReferenceException x) => "Uh oh")
};

var protect = catchers.Aggregate((acc, nxt) => thing => nxt(acc(thing)));

var f = protect(() => FetchStringSomewhere());

var s = f();