Implicit Blocks considered harmful

[David C. Plummer <DCP@QUABBIN.SCRC.Symbolics.COM>]

    Date: Sat, 3 Jan 1987  13:51 EST
    From: "Scott E. Fahlman" <Fahlman@C.CS.CMU.EDU>

	  3) It's a bad idea to begin with, since it couples the NAME of the
	     function with how it operates.  Thus, if you ever change the name
	     you must go through and check for any return-froms.

    If you ever change the name of the function, it is trivial to check for
    any return-froms (Automatically even).

Indeed, it is harder to find and change the callers!