gistfile1.txt

A QA engineer walks into a bar, and orders a beer.
Then he orders 0 beers.

Then he orders 999999999999 beers.

Then he orders an aardvark.

Then he orders nothing.

Then he orders -1 beers.

Then he orders NULL beers.

Then he orders asnwikfjsdf.

Then he orders a "><script>give_me_your_credit_card()</script>.

Finally, the QA engineer leaves without paying, comes back, and asks for the tab.