Waiter pouring tactics

My wife noticed that at almost any function where waiters serve liquid from a pitcher they pour it out of the side of the pitcher rather than the spout. Is there any good reason for that??

So you’ll get some ice with the liquid.

Is also so that the ice does not cause a splash, which it can do if it comes through the spout.

>>while contemplating the navel of the universe, I wondered, is it an innie or outie?<<

—The dragon observes