I remember the good ol days, when most people were running win9x, and there was a little program a few of us had called WinNuke. You just put someone's IP address in it, press the button, and the person on the recieving end got an instant blue screen of death. Had to reboot. Great laughs.

I think I may actually still have it somewhere for memory sake, but it's useless now. Almost noone runs Win9x anymore, and they put an update out to block it anyway. On IRC back then, we were always under constant attack form new things all the time. WinNuke, Pepsi, DoS attacks, Ping Floods, etc. etc.

It's probably the main reason behind the first consumer software firewall that I knew of, Conseal PC Firewall. Most likely written by a scene guy, who got tired of getting frozen screens, disconnected from the net, dog slow speeds (we were already on 14.4k, 28.8k, and 56k modems back then) and reboots.