Have you heard the one about the tribe of Basques who lived
in this valley? They heard that barbarian hoards were
approaching, so they decided to lay a trap. They all waited
in the hills at the entrance to the valley. When the
barbarians passed by, they descended on them.
Unfortunately, the barbarians had a lot more experience at
warfare than the Basques did, and the Basques got
slaughtered. The moral: Don't put all your Basques in one
exit.