What are the chances?

After getting skunked on two boxes of dimes,it was looking like id be pulling no silver at face for the week....I took a walk to the corner store...saw a dime gleaming in that CERTAIN way on the ground...could it be?Oh yeah! A gem b.u. 1964
What are the chances of finding a silver dime on the ground in a busy urban area?After buying 5000 at the bank and not getting a single silver? Made my day!
