Unless I make a mistake when I make my own cue sheets. Can remember two incidents where that happened.

The first time I made the stated left at a T intersection, which should have been a right. Fortunately, I have a great sense of direction and quickly realized that if I needed to be going in the opposite direction. Just after I reversed course a motorist came by. Asked him if I was heading towards Heggins. He confirmed that I was.

The second time I was giving out extra copies to a young couple in Wallace, ID. They were trying to get to ACA's Northern Tier route and only had a pretty high level map. They had come back to town after trying to ride the Pioneer Trail marked on their map. They thought it was a bike trail, but it's really a backpacking trail that's is not rideable in that area. As I was handing them one of my cue sheets I happened to notice there was a turn marked as a left that should have been a right. I fixed it for them, but I don't think I instilled much confidence in them. Thing was that, based on where they had come from, they could have easily picked up the Northern Tier with a better planning. Because they had opted to ride the Trail of the CdA and thought the Pioneer Trail would also be flat (and rideable) they were now staring at the north end of the Bitterroot range. Wonder if they ever made their destination.