Yes, precisely, that's when all that cleverness will come back to bite you hard.
"Which line was that again? Oh... "
Pics up the phone, dials.
"Honey, I won't be home in time for dinner."
I can guarantee that if you start looking at random, you will find the right line within the 43 guesses
I can guarantee that if you start looking at random, you will find the right line within the 43 guesses