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>Back home, before they had the breathalyzers, you had to blow the bag and turn the crystals green.

That was the original breathalyser!

>If they don't turn green, the cop pays for the crystals out of his pocket,

Bizzare. Did they have to pay for the bullets that missed too?
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>Of course, there were always smart guys who did a good act pretending to be stiff drunk, ...

Have you ever tried to look suspicious, nervous or guilty at an airport, just so the customs guys will pull you in and be frustrated? I know of people who used to do it regularly. I've done it once or twice but never been pulled.

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