“The trouble with summoning demons isn’t contacting the beasts or even performing their various required rituals thereafter; the first few times you get used to all of that… No, the tricky part is actually keeping them entertained once you get them here.
Since my youth I have summoned several creatures, one in particular more times than I care to note, and I had the same issue with all of them. Demons, in my experience, are all totally stricken with boredom.
This can make them irritable, cranky or, in some cases, irrationally persistent, but always ravenous for a good time.”
-Seraphina, decades after the first encounter.