you mean it feels incorrect to keep --you get a funky "feeling" off it --basically put --it disturbs your peace --- if so my "bottom line" is if it "feels" wrong and bothers you to keep it , then it needs got rid of --if possible replace it exactly where you got it from or as close as possible to it --if that is a no go for some reason or another, than take it to a peaceful spot -- say a heart felt "I'm sorry if I disturbed your rest --no disrepect was intended" offer a bit iof tobacco and be done with it -- bottom line if it bothers you then you need to be rid of it in a respectful manner. --nothing is worth feeling creeped out and uneasy / not at peace.
some folks believe that some things have bits of spirits (human or animal) "attached" to them , and if you believe in such things-- than that could be what your "feeling"