I guess Feliway was what I was thinking of. It's not for a kitten. It's for a lady who lost her indoor cat for six days. I helped her find him but now his "sisfur" is beating the tar out of him! Not sure if he smells funny to her or she's resentful that he left or pissed that he's back! Prolly a combination..she is a meezer!
I suggested the towel rubbing routine but I thought I'd suggest some calming remedies to see if she puts out the welcome mat for the prodigal brother!
Thanks again!