My favourite way back in the day (late 90s/early 00s or so) was telling people to go start->run->telnet www.boston.ru and it would be a little asciimation of a

My favourite way back in the day (late 90s/early 00s or so) was telling people to go start->run->telnet www.boston.ru and it would be a little asciimation of a penis getting erect and then spurting with a pc speaker noise... People would sometimes flip out like they had gotten a virus or whatever