@jk Wow. lol
Worst I ever did was sneak into my parent's bedroom while they were still sleeping and start up their computer in order to start downloading a shareware game over dialup.
All the while, I was hoping to God the initial beep from the BIOS during bootup didn't wake them up, nor the keyboard or squeaky office chair.
@jk My parents never really used computers at home back then. It was only me, but theirs was the only one with internet at the time, so they had me at a stranglehold.
This was mainly just their way of trying to make sure I didn't ruin their brand new Dell Pentium III 450MHz with 96MB of RAM & a 9.1GB hard drive running Windows 98.