I'll start:

I was working on an Excel spreadsheet, and I noticed that typing on a keyboard was violating my sense of "balance"

Whenever I pressed a key, I would have to press another key with the same "click" with the same finger on the other hand
For example, if I pressed "s" with my left ring finger, I would have to follow that up with pressing another letter or number or similar key of the same size with my right ring finger

This was especially problematic, because not all keys are the same size. The space bar and backspace and shift keys really throw me off because it's extremely inconvenient to have to press those twice when you're in the middle of typing something up