This is silly. No monster (except zombies perhaps) would do this. Even chained monsters would try to no die, and I guess in this case it would somehow try to get help by making a lot of noise.
The chance is at least one PC has lower initiative than the enemy, so the enemy gets a "free" attack...
Even if squeezing when fighting is allowed (which it is in our campaign), we have found it to be an inferior tactic in most cases. The -4 penalty to attack and AC is so harsh that it is not worth the benefit of getting an extra attack.
In fact I think the best solution in the example given by...
I agree with MerricB, and have had similar experiences (though I have not played this dungeon).
The 5ft hallways are boring in a party with several melee combatants. Some of you have suggested tactics which MerricB have proven to not work at low levels (tumbling, high level spells).
Others...