Oddly enough, you can apply the "jug of milk" logic to atheists as well.
I pray to the jug of milk and 1 of 3 things happens:
1. The prayer is not answered. (See! God doesn't exist!) YES
2. The prayer is answered. (That was a coincidence... there is no God) NO
3. The prayer is answered, but only after some time passes. (That was a coincidence...there is no God) Wait