Sneaking into the computer room at night to use the internet was a largely fruitless endeavour for me as the noise would wake my parents up, and eventually I thought to myself, "Surely it's possible to turn off the noise", so I dug around the device's properties window and found a speaker setting.
Edit: I should probably point out that I wasn't trying to look up porn.
I was around 10 or so when we got the internet at home, and since my primary school had to share what I'd now assume was an ISDN connection amongst all of their computers, causing browsing speed to all but stop (I distinctly remember having to wait almost an entire lunch break for a Total Annihilation page to load), being able to browse the internet (relatively) quickly was fascinating.