Is it normal to play really dangerous games?

I play a variation of tug-of-war with my male room mate which we have described to several people (including our girlfriends) and they seemed to kind of object to it or think it was a bit strange.

In the game we play, we take a piece of fishing line about a foot and a half long and tie the endpoints of it to each others penises. Sometimes we do this with our gonads. The string has broken before and bleeding has occurred. My friend had to go to the doctor once.

In a more extreme version which we have play when the above game gets too boring, we tie another string about 6" long to the middle of the string which hangs down perpendicular to it, making a 90 degree angle with the floor. We then proceed to tie a 2 lb. "cannonball" lead sinker to it. All of the material comes from our tackle box.

In another game we like to play, we go into a dark room with maybe nine or ten people and one guy has to empty glow stick fluid on his genitals. He then has to shield and defend himself as the other people in the room attempt to punch and mutilate his genitals. I have urinated blood from this game.

I would like to clarify that WE ARE NOT GAY! No homo, seriously.