The argument against slippery slopes

What's a slippery slope argument? Something all young parents of our generation should be familiar with. "If you give in to her now, then she'll learn that crying can get her stuff, and from there on she'll cry whenever she wants stuff until you give in, and then she'll end up a crybaby".

Courtesy of Greg Mankiw, a link to a good argument by Eugene Volokh against slippery slope arguments:

"If you accepted this slippery slope argument, then you’d end up accepting the next one and then the next one until you eventually slip down the slope to rejecting all government power (or all change from the status quo), and thus “break down every useful institution of man.”

=p