Image: Skeletor holding up a relatively huge 80s/90s cell phone with an aquatic mutant character name Mer-Man behind him.
Caption: Start every phone call with “my phone is about to die” that way you can hang up on them whenever you want to.
Better yet, tell them you’re dying, and if you need to, fake your death, move to Argentina, make that dive bar you always dreamt about.
How about starting the call by informing them they are dying. If they have questions just enforce your predictions to get out of the call.