I have left him alone overnight in the dark with the pink...I have tried braining, and tease feeding (that is REALLY hard!). I have not tried scenting yet. I will not give up on him,...so time will tell. I KNOW Darla will be ok, she will be getting a pinky head on Saturday. I am THRILLED with them though, and am not complaining AT ALL. d'artagnan, Yoshi and Drusilla have never refused a meal..I have them on a 5 day schedule. To me, d'Artagnan alone is worth more than the cost of all of them, plus shipping!