I follow the "leave nothing but footprints take nothing but photos" rule of state/national parks yeah because conservation. But also because when I was 11 i read a short story about a girl who went to a museum and stole a bandage flake off a mummy on display with the mentality of "im just one person one piece won't be missed" then at night she was visited by the mummy and it plucked a single hair from her head and then the next night a different mummy took another hair and she realized that there were only so many pieces to her before there would be nothing left and that story was forever wedged in my brain. Anyways leave cool rocks where you find them or the mummies will get you