Here's a quick thought experiment for you. The moon comes out at night, right? When we see it, we know that bedtime is coming soon. Beautiful, blissful sleep. But if there were three moons, would we be three times sleepier?
This particular experiment doesn't need to be a thought experiment any more. The practical version is here: Three Moons Over Milford. The results?
Having three moons in the sky would make us all absolutely soporific. We'd fall into a deep, deep coma in just a few minutes.
Three Moons Over Milford: don't watch it while operating heavy machinery.