Abstraction is a tool that streamlines gameplay.
I played a rogue in a larp one time whose weapons and alchemy were his mother's bad cooking...a stale baguette for a sap, various failed dishes for poisons. His back story (me being nearly 6' tall) was, "Kieran love, you keep bumpin' yer head on the rafters, have ye thought about setting out to be an adventurer?"True story - I played a Halfling Monk that I fluffed as "just a Chef" - everything that was monk about him he did by accident. He once Stunned a T-Rex (might have been an Allosaurus) by hitting it on the nose with his Frying Pan while trying not to get eaten. This was on the Isle of Dread, naturally!