BREXIT - simple explanation: 

GB: We want a unicorn. 
EU: Unicorns are non-existent - you may get a pony.
GB: We made a vote. We don't want the pony.
EU: A pony or nothing.
GB: We made a vote. We don't want or nothing.
EU: You still didn't grasp it, did you?
GB: We need more time to think about it.
EU: About getting the pony or about getting nothing?
GB: We want a unicorn.