Turning off all my phone ringers in my house so my buddy could connect to my computer via dialup to play Doom deathmatch. Then even better, Buffalo Doom Server (a service which cost about 15 a month) for locals to hook up to play together. I recall saying “Holy shit, this is absolutely insane. There are 7 other people online that I’m playing against all in the same room. And I heard that they will soon be able to support a 16 player server in the near future” Everyone was sooooooooo amazed.