Okay, I understand that. Being married to a former Federal Wildlife Officer, I have been informed of the federal laws of picking up stuff numerous times :)
LOL!! I'll bet you have! He's probably smacked your hand a time or two too, or at least wanted to.
When we go scuba diving, most of the places we go are marine parks, so collecting of any kind is forbidden and subject to a heavy fine, but I sure do have a hard time with that when I see a pretty shell or a piece of coral or something. But so far, the threat of the fine and the possibility of spending the rest of my life in a foreign jail have kept me honest.