Quite an impractical item with which to syphon petrol, I'd have thought..........too inflexible and surely the flared-end would be, either, a) too large to fit down the neck of a standard petrol tank, or, b) too large for anyone to get their lips around to form a sufficient vacuum to create the requisite 'suck' ?
That rather depends.........
You have assumed that when I commented 'just as funny here', I was investing the joke itself with a positive-value humour-wise.........