I think over the course of the night we had 1 nat 20 (not counting the one that was rolled just as an "evens or odds" roll) and about 8-9 nat 1s. I rolled 6 consecutive single digits at one point. Fortunately the only 20 saved my character from being possessed so that was nice.
I get its a joke, but this die is actually really not scary since you have nothing but a single result possible.