Car stalling,very occasionally,when I'm going down hill and shifting
 

I have a 2008 Honda fit, every now and than when I'm going down hill the car stalls out and I have to restart it. In the last 6 months it has only happened about 8-10 times, and only once on a flat road? At first I thought my foot had slipped off the clutch to fast but I have tried to re-enact that scenario but it has never worked. Has anyone had this problem?