Why the wait?

I have seen on replays that attackers will wait up to a minute before resuming the attack. What is the tactical benefit to this maneuver?

Re-think the plan or just to make the attack last longer to annoy the attacked as can't go back to see the damage. Or perhaps the attacker had to go do something else for a moment, like preventing the dog for chewing up a sock and then return to the attack and hope it's not yet over...

Or attemping optimum CC troop pull before zapping them (and mortar/wizard)