MT4 EA: Stupid Programming Mistakes

Well, I spent last evening tracking down some problems in my next foray
into programming expert advisers.It turns our that a simple logical
test was using an '&' instead of an '&&' between two terms.This little
horseshoe nail caused some position closing attempts to fail with an
error 138 -- meaning that the price being used to close the position
was too far away from the market price.I also ran