Yes of course... I think we are supposed to... even dogs, cats and the like check theirs out.

And BTW black poo, blood in your poo... not normal... sounds like old blood and possibly hemmoroids or something... old blood, go soon to the doctor. Red blood, IDK... if doesn't hurt to wipe, you have some problem close to the exit... unless ecoli or something.

hope i am wrong that anything serious going on.