Website for pirating books. A godsend for me during university, where I saved 100s of dollars per semester, while getting the books in a digital format which I prefer.

I had windows do a large update in the middle of an exam once. Like the major version number changes or something, took probably like an hour and a half. I was quite lucky with the exact timing and the fact that I am usually able to finish exams quickly as I did end up having half an hour for the exam, but it did make the whole situation a bit more spicy than necessary.

10/0 ≠ lim x->0+ 10/x

Or in other words, the thing you keep quoting does not apply in this case. Any number divided by zero is undefined, not positive infinity (or negative infinity for that matter).