Several people have learned if I warn them an explanation will be long, I don’t mean “oh I like long walks on the beach but after 2 minutes I want to turn around” long. I mean “heat death of the universe” long.
Example: someone asked me to explain something while playing halo. I told him to make sense of it I need to explain some history, do you want the long version or short version. Long version is long. They said long version. 3 hours later, they fully understood their answer and never asked me to explain anything again.