Hyde

they wanted to take my camera once when i came back from the states.  cuz they searched my car and couldnt find anything to tax.  (since i didnt buy anything that time, everything was in another car )

then i told them i have the registration card and they said, so what, it doesnt mean anything.  then i said, then whats the point of the custom officer filling it out for me when i paid duty on it.   that stupid custom chick didnt say anything.
then i said, u can keep it all u want, since i'm just gonna come back and pick it up without paying any taxes on it and also will be filing a complain to you.   she talk a bit to another custom guy and let us go with my camera.

its better to have that card, but sometimes its really useless if the customs wanna be an ass.  
dont let them scare u.