Units celebrating = units non-responsive

[The Hun]

Usually they're done raising weapons in the air and cheering after about 3 and a half seconds.

Same here.

[Ciaran]

Strictly speaking, in my opinion at least, units should also be nonresponsive to any orders when engaged in combat as well. They´re fighting for their life, after all, and then this fellow in charge (the player) tells them to turn the back to the enemy? It´s especially an issue with cavalry, you can crash it in the rear of an enemy, pull back, crash again... Normally, I´d expect them to crash in once and then slug it out, killing ( or rather routing) the enemy or die trying. I can´t even start to count the battles I´ve won with this "cheat".

[Kickius Buttius]

This reaction, although possibly a bug, is in fact historically accurate. It was quite common for units to stop to ravage a baggage train, loot tents or corpses, or pursue small groups of survivors when logic would have dictated that they look to their general for orders regarding the still ongoing battle. More than a few battles were lost because Generals were unable to get their troops to stop focusing on looting or celebration and instead look to the remaining enemy units or oncoming enemy reinforcements.

Not saying this isn't a bug, but just pointing out that it is similar to something often experienced in ancient battles. I presume that the celebrating units, however, were rarely the generals themselves.......