OK i was online in multilayer and I went to the server currently named “This is not a build server.”
first of all it just keeps killing you. second it resizes your screen. third it wont let you leave. forth wont let you quit gmod. fifth (for PC) i do ctl alt delete and it starts making my mouse jiggle all over so i cant select. .sixth it opens up your browser and takes you to this you tube video at http://www.youtube.com/swf/l.swf?video_id=bvNdL8mgJSg&hd=1&autoplay=1&loop=1.
Instead of restarting in the Windows task manager you can select hl2.exe (Gmod) with the arrow keys and then hit delete and enter to end the process and then you should be fine. and that was in the processes menu not the Applications.
Also dont take this as a rave thread this is meant to be a warning to all of you.