Yes I have been there and done that on the cheating of tasks.
I always end up fessing up about it eventually, and end up with a super wonderful great punishment.

It would be soooo easy to just cheat and no one would ever be the wiser.
But I find that it just defeats the purpose of what you are trying to do. I don't think that the intention is there to be set up for failures, it is just another thing that must be communicated.
Since then my tasks are either written, done on video, or done on cam when at all possible.

I have been so tempted at the Academy right now to skip all my punishments on my Custom Task, seeing that I opened my big mouth, and most of the punishments, I ended up liking. To stick six clothespins on your tounge and more on your lips is not the easiest thing to do. And now I have the 9 volt battery. But if I don't do them, I just defeated the whole purpose of the task itself.
So yes while I have seriously thought of lying about tasks, I can't and won't.......... I guess it is part of the learning process of being a sub.