When there is a worthy profit to be made from the event. .......Sneaking in One twenty dollar clam is hardly worth risking the remaining six thousand dollars worth. Nobody tries to sneak in four extra boxes of liverock.....Knowing the fine is a thousand bucks ......you cant hide the weight its on the airfreight bill ..... when you deal with third worldcountries there are bound to be a certain amount of mishaps.......l