AWOL:
if (blockRelay = false){Oh dear.
Is there a problem with the arbitrary name I assigned the booelan integer? Did I mis-spell false? Should I have included a semi-colon after the parenthesis? Is if supposed to be capitalized? Hang on, now I see it, I should have used == instead of =. I didn't walk on water on my way home from fishing this afternoon either.
See, this is exactly the type of teaching style that is incredibly frustrating to a beginner, instead of identifying my mistake you just write F at the top of the paper and hand it back to me. How am I to know what I'm supposed to improve if my mistakes are explained as "oh dear." Yeah, I'll figure it out on my own eventually, but I'd arrive at that eventuality without the help of the community... so why do I need the community's help? See my comment above regarding my plans to "stick around for a while."