Question about key drop chance...

I was wondering if anyone could tell me if having keys in yoru stash effects the drop chance at all? I ask because I have 4 dkeys in my stash and ever since then no dkeys have dropped after 70+ runs. The drop chance is 1 in 12 so after 70 I'm really think something is going on and all I can think of is maybe I have too many already. Anybody know?|||I have never had issues with this. I generally have a character that is my Dkey collector and end up getting a bunch. 70 is really not that much to not see one in the grand scheme of things, though it does blow pretty hard...I have the same kind of luck with ##!!ess runs.|||I have the same problem, I been doing runs for over 2 weeks and only got 2 keys. Id say i average about 90-100 runs (all three) per week. before the patch I got keys all the time. what gives?