>

This guy gets it. Since asking stupid questions is the initial antidote to ignorance and stupidity, you encourage people to ask anything, especially the not-to-bright (yet) people.
It's a useful fiction.
A CX PM attended one of my teams inspect and adapt sessions where we were showing a machine learning model to help determine based on weather patterns, water levels and usage information to identify the most likely places leakages on the clean water network may hit during adverse weather events. 
He asked how we can ensure that our machine learning model wouldn't learn too much and try to take over the rest of the platform. 
Trying to explain to someone that a machine can only learn from the data it has access to and all that it could do was predict outcomes based on data when that person thinks we could create a fucking terminator was terrifying, hillarious and hugely frustrating. 
So yes I agree, this man asking how we could ensure we didn't accidently start skynet was a stupid question. >

This is gold >

Well of course there are. The reason educators say this is because if students avoid asking a question because they fear they will be negatively judged for doing so, they will end up just not understanding the material, which helps neither the student nor the teacher.