This is the amusing moment a woman's birthday gift of a £100 cash floats away after being attached to a helium balloon. Mother-of-two Nikki Walker, 37, from Pollok, Glasgow, excitedly opened the wrapped balloon present sent to her by mother Carol Walker, 69, who couldn't attend the occasion. But when she untied the box - outside in her garden - she didn't realise the balloon wasn't stuck down and also ...