Back when I first discovered that you could mod Quake through QC I tried my hand at patching several already made mods together... Uhhhg what a hack that was! Anyways, I thought it would be cool to throw in a grappling hook that would allow you to get to those great sniping areas. When I was finally finished I gathered up my computer and gear and got together with a bunch of my friends for a network Quake party (as we called them).
Just for fun I didn't mention anything to anyone about the grappling hook... and what fun it was when I sprang that on to them! At first they couldn't figure out how the heck I was getting up on to high things or how I was hanging from the ceiling in those dark unnoticeable areas. After awhile it started to wear on them.
You know what they say.... "It's all fun and games until someone pokes their eye out" Well, after about 20 min of harping on me I gave up the key bindings for the grappling hook and immediately after... they discovered that if you stuck the hook onto someone they would take damage the whole time they were hooked! So, to everybody's enjoyment they hunted me down and hooked me none stop for a solid two hours. As each and every minute went by my fun level dropped to a big fat zero.
I never did that again! Lesson learned! ...never give out those secret key bindings! ...oh, and don't be a jerk-wad too.