I did an assembly experience and was told to lie by the dude giving the talk. I think it was something about getting an imaginary scholarship offer and turning it down to pioneer. This didn't happen because I was physically prevented from taking college entrance exams in the first place.
I am a little fuzzy on the details now. It was so long ago & I haven't had my coffee yet. (I am making myself drink coffee a little later than the crack of dawn. ugh.) I think I had a thread on it years ago.
I can totally understand why people lie in these presentations. They live their lives believing the experiences 100%. Then they are honored by being asked to give one, and are not expecting a trusted elder to coerce them to lie. They are given "spiritual" reasons to lie and they obey.