Try writing the author. They will almost always send you a pdf free of charge.
and in violation of copyright.
Not that it would (or should) stop me or another author, but rules is rules -- best at least acknowledge them before we break them.
imagine the uproar if a Math teacher was not functionally proficient in English.
Do you see the problem now?
Do you mean english (proficiency in the spoken english language) or English (historical and rhetorical knowledge of english literature)?
There would be justified criticism (though not, necessarily, uproar) about the former, but none about the latter in any region I've ever lived in.
And while we're at it: if you think teachers should be competent a significant portion of your job requirements, why are there 'computer professionals in a school district'? Would you, with your 'knowing a little about most things' be held responsible if you had incorporated incorrect chemical formulae on a school website provided by the chemistry teacher, or be sought after to serve as a replacement for him?
It's most absolutely desirable for every person to have general (or tangential) knowledge relevant to their field, but it is not their core proficiency. I certainly don't value my children's teacher's primarily for their computer skills.
a clever method of concealment at airport security
And the human body works pretty well for concealing such things. Just pay the airfare (and a small bit for the family) of a (likely) terminally ill individual and VOILA -- intercontinental transmission. Bonus points if you can get them to stop off in Madagascar first.
He has not acquired a fortune; the fortune has acquired him. -- Bion