Rubber crutch humor

Peter David
notes:
\\An anthrax scare was caused at Random House and Del Rey (where
Kathleen [his wife] works) today when a package was discovered brimming
with white powder.
Turns out the package was postmarked April 1, and preliminary testing
on the substance comes back negative. Apparently it was someone’s idea
of an April Fool’s Joke.\\
Mean, cruel, and outright dumb– but on the other hand, who would have
thought a major book publisher would have actually opened an
unsolicited manuscript?