Today I heard two I find really strange from an old work mate.

She told me that she accidentally poured boiling hot water straight from the kettle on her hand and a work colleague said pour some petrol on it. Well my mate did and she said it was instant relief. Seems strange to me why petrol would work.  I asked was it unleaded? 

Another she told me was for bruises. peel a potato and strap a piece to the bruise over night.

I told another mate this one and he reckons eating lots of tomatoes for bruises.

What do you know or have heard?