Not from a teaching standpoint, but from within an IT department as a peer and later a manager I've seen plenty of both men and women 'play dumb' to get help, even to the point of trying to slide by without learning the material themselves and always expecting someone else who knows how it works to be around.

The most extreme examples did not last long. Less extreme cases were treated by starting off any request for help with a review of the process and available resources that led the colleague to ask for help from a co-worker. This was done to develop the ability to perform research and empower them to make decisions on their own as long as they had a good basis for it.

Obviously a short training seminar is different, and the expectation is not for the participant to have found the answer on their own, but I believe a short review of their thought process is in order so the instructor can catch any systemic faults in the student's development. That is, don't just tell them what to type, but figure out if they are missing a core competency and perhaps recommend an independent course of study to supplement the seminar.