“You were about ready to bolt for the door.” “I was working out the mathematical equation of hurdling your couch and escaping.” “It takes maths to jump a couch?” He nodded. “Yep. Distance of the jump required times the height of the couch, divided by the energy and exertion necessary. I’m sure there’s a cos, tan, sin equation in there somewhere but I failed year-eight maths so I really wouldn’t know. And you’d need to subtract the amount of food I ate at dinner and my absolute lack of athletic ability to do anything, really, so I’d also need to allow for an inevitable crash over the back of
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