I think this is an excellent example of when a hood would be a great tool in the arsenal of many.

I think I've just seen too many bring the hood out at the first sign of stress, or the anticipation of stress, or maybe just because they don't wanna deal with it. I think it's important with any animal to realize that a little bit of stress isn't necessarily a bad thing. Done properly you can get through it, without pushing the bird too far (what is too far is for the individual to determine as we all know our animals better than anyone else). This not only helps the bird learn how to deal with that particular situation, but also helps them learn that it is possible to get over things that might stress them in the future, learn to learn. You are certainly not teaching them anything by shutting it off, the only thing they might be learning is that if they feel uncomfortable they can pitch a fit and you will take care of it. Unfortunately you see the aforementioned in a lot of people's kids.