Looks like I screwed up my first one.
1d6, subtract 1000d6, rolled once.
Roll set 1
Die rolls: 6
Roll subtotal: 6
Minus die rolls: 3, 5, 6, 4, 3, 5, 3, 5, 3, 3, 3, 5, 5, 6, 5, 1, 3, 4, 3, 5, 2, 4, 2, 5, 6, 4, 3, 4, 3, 1, 6, 1, 4, 5, 2, 4, 1, 6, 2, 5, 4, 2, 5, 5, 5, 6, 6, 3, 1, 6, 6, 4, 4, 2, 4, 4, 1, 3, 3, 3, 2, 2, 2, 6, 6, 2, 5, 1, 1, 3, 3, 3, 3, 2, 4, 5, 1, 4, 2, 4, 3, 1, 1, 4, 6, 5, 2, 1, 1, 6, 2, 2, 4, 3, 2, 2, 4, 5, 5, 4, 5, 1, 3, 5, 6, 3, 2, 1, 3, 2, 6, 3, 5, 3, 2, 2, 1, 4, 1, 6, 3, 6, 2, 6, 4, 5, 1, 4, 4, 6, 6, 1, 3, 3, 4, 5, 1, 2, 6, 1, 4, 4, 3, 2, 4, 2, 1, 6, 6, 6, 3, 5, 6, 6, 2, 2, 1, 4, 4, 6, 3, 2, 3, 1, 5, 5, 3, 2, 3, 5, 1, 1, 5, 6, 5, 4, 6, 3, 6, 4, 1, 2, 5, 3, 5, 5, 3, 2, 1, 4, 5, 3, 1, 1, 2, 3, 2, 2, 4, 2, 3, 5, 6, 2, 6, 6, 2, 1, 5, 2, 1, 1, 6, 1, 1, 6, 2, 2, 2, 1, 4, 3, 4, 6, 2, 5, 5, 3, 2, 3, 5, 6, 1, 4, 3, 5, 2, 2, 4, 3, 4, 4, 5, 4, 1, 5, 6, 3, 5, 3, 3, 6, 1, 5, 1, 2, 4, 3, 5, 4, 4, 2, 5, 5, 4, 5, 4, 4, 5, 1, 6, 6, 1, 6, 4, 2, 1, 3, 2, 1, 5, 4, 4, 1, 6, 2, 6, 1, 1, 2, 5, 3, 3, 1, 2, 6, 3, 4, 1, 2, 4, 6, 1, 6, 1, 4, 2, 1, 3, 6, 5, 2, 4, 3, 2, 4, 3, 4, 3, 2, 3, 5, 4, 2, 5, 6, 4, 2, 4, 4, 2, 1, 3, 1, 2, 6, 5, 5, 5, 5, 5, 6, 1, 5, 1, 1, 6, 1, 2, 6, 4, 6, 2, 1, 6, 2, 5, 6, 1, 6, 1, 3, 1, 4, 5, 1, 2, 1, 2, 3, 5, 1, 5, 4, 3, 5, 6, 4, 4, 3, 6, 2, 3, 2, 1, 5, 5, 1, 3, 5, 5, 2, 6, 1, 4, 4, 3, 3, 2, 5, 5, 4, 6, 2, 1, 3, 3, 5, 4, 1, 3, 6, 5, 3, 2, 2, 2, 5, 1, 5, 3, 2, 1, 5, 3, 1, 6, 2, 5, 4, 4, 1, 5, 6, 2, 2, 5, 1, 3, 4, 6, 3, 6, 4, 6, 1, 4, 6, 5, 2, 6, 4, 6, 3, 5, 6, 5, 2, 1, 5, 4, 1, 6, 6, 3, 2, 6, 3, 1, 4, 5, 1, 6, 6, 2, 4, 2, 3, 2, 4, 2, 3, 3, 2, 4, 4, 1, 3, 2, 6, 2, 6, 6, 3, 2, 4, 1, 5, 6, 3, 2, 1, 2, 5, 1, 4, 6, 4, 1, 6, 1, 6, 2, 6, 1, 6, 1, 6, 4, 6, 6, 2, 2, 4, 4, 2, 4, 3, 1, 1, 5, 4, 1, 3, 3, 6, 5, 6, 6, 6, 4, 1, 3, 6, 3, 6, 4, 5, 2, 6, 1, 5, 4, 3, 4, 6, 2, 5, 1, 1, 2, 6, 5, 5, 2, 2, 5, 3, 4, 6, 5, 2, 6, 5, 1, 1, 4, 4, 4, 4, 4, 4, 5, 1, 6, 6, 1, 1, 5, 2, 4, 1, 5, 4, 4, 6, 5, 5, 4, 5, 4, 6, 4, 1, 5, 4, 6, 5, 6, 4, 6, 4, 3, 2, 6, 5, 2, 6, 5, 6, 6, 3, 1, 6, 1, 2, 6, 2, 1, 3, 4, 2, 3, 1, 6, 2, 1, 5, 4, 2, 3, 2, 6, 4, 4, 5, 3, 1, 6, 5, 6, 2, 2, 5, 5, 5, 3, 3, 2, 1, 2, 2, 3, 4, 5, 4, 5, 3, 1, 2, 2, 1, 1, 1, 6, 6, 2, 5, 3, 5, 6, 6, 4, 5, 2, 5, 5, 1, 3, 4, 1, 2, 4, 5, 1, 4, 4, 1, 1, 2, 6, 6, 4, 5, 5, 6, 4, 3, 3, 1, 2, 5, 1, 2, 6, 5, 2, 3, 6, 6, 4, 5, 3, 3, 6, 3, 4, 6, 1, 6, 3, 2, 2, 2, 4, 2, 2, 2, 6, 6, 4, 5, 5, 1, 1, 2, 1, 4, 2, 5, 6, 5, 1, 1, 6, 6, 6, 4, 6, 2, 2, 4, 1, 2, 6, 1, 1, 3, 3, 5, 2, 1, 2, 1, 2, 3, 2, 5, 5, 4, 4, 3, 4, 2, 5, 6, 6, 3, 6, 5, 1, 3, 1, 3, 2, 1, 1, 1, 5, 1, 3, 2, 4, 4, 2, 6, 3, 1, 6, 5, 3, 4, 6, 4, 1, 5, 3, 3, 2, 3, 5, 3, 3, 1, 6, 3, 6, 5, 5, 1, 5, 5, 2, 3, 3, 3, 6, 3, 1, 4, 5, 5, 5, 1, 3, 3, 5, 1, 1, 3, 1, 4, 3, 6, 1, 6, 5, 4, 4, 6, 1, 6, 5, 3, 3, 5, 2, 1, 2, 2, 6, 2, 3, 6, 3, 3, 5, 1, 6, 3, 2, 1, 6, 3, 1, 3, 2, 6, 6, 6, 5, 1, 3, 5, 5, 3, 4, 6, 5, 1, 4, 5, 5, 5, 1, 1, 5, 1, 2, 3, 5, 3, 1, 2, 3, 4, 5, 1, 1, 5, 5, 3, 1, 1, 2, 2, 3, 5, 1, 1, 3, 5, 4, 5, 5, 2, 5, 1, 5, 5, 6, 3, 5, 3, 5, 3, 1, 1, 4, 1, 5, 3, 1, 4, 2, 1, 3, 5, 2, 5, 3, 4, 1, 5, 6, 1, 4, 4, 5, 6, 3, 4, 1, 1, 3, 1, 2, 6, 4, 1, 5, 6, 2, 3, 6, 3, 1, 3, 5, 6, 3, 6, 6, 2, 6, 3, 6, 1, 5, 5
Minus roll subtotal: 3498
Roll total: 6 - 3498 = -3492