I said "No, ...". Sometimes I will re-tighten once if I'm not sure I actually got it right the first time but just that once. I've read what oneclick quoted (post #7) from several sources and I have always found a hard ridden crank will not be up to to torque when I check it. I did split a crank years ago and consider that the lesson from that was yes, what oneclick posted is what happens.
And yes, I've heard supposedly good mechanics tell folk that checking those bolts for torque is good practice. I keep my mouth shut because that's an argument I'm not going to win and just walk away a little sad and hope the advised forgets.