Don't bother with steps that are each different — making steps the wrong height/length is enough. If you ever walked up/down stairs that felt really weird it's probably because the builder ignored the international standards on that topic and built steps that are a couple centimeters off.
That was actually a thing in castle design. There'd be one step just high enough compared to the others that an assassin chasing the king would hopefully stumble on it, and the king could turn around and stab the assassin.
I'm sure you mean all the heights are a little different, but I'm envisioning where every step has to be taller than the previous one and the shenanery that would happen to make long stair cases navigable. Start with teeny tiny steps to end with uncomfortably large ones.