True, I've done it myself...
They wanted me to join an NG unit in Indiana in 1969 to complete my so-called "obligation".
I declined ~ some excuse like "I'd rather eat worms than serve with draftdodgers" ~ something like that ~ so they gave me a waiver.
Dan Quail's the guy who got the position they wanted to stick me in. It is presumed he used "influence" to get it too.