Yeah, probably a good idea. I remember once giving a nice accessible talk on vision, lots of optical illusions etc, to a school in Gateshead where not many people were going to go on to university. All went OK, then the teacher asked me brightly, "So what qualifications do you need to be a lecturer in neuroscience then?" and I said, "Er, well you need a degree obviously" (could feel the temperature sort of drop, KWIM?) "er, and then a PhD - how long that takes? Oh 3 years at least" [some kids audibly gasp in horror] "and, er, then you need to spend several years on short-term postdoctoral contracts in different labs" [kids are all looking really "yeah right" by this stage] "and er, then [self-censors all the bad stuff and finishes brightly] you end up as an academic!" Definitely felt that did not go down well. - Neuromancer