I was told to excuse myself if I ever peed out in nature... As in, if I went on a hike, peed on a tree, before i did it, I would have to say excuse me :hsugh: so that I don't anger spirits that might be wandering around me h:

Don't walk over graves, walk around them... - So basically you're not disrespecting the dead

There is more, but I don't recall them, my Filipino grandma told me most of them...

Edited:To add explaination to why