An unused enemy named "Mr. Friendly" can be found in the Half-Life's data. According to the book "Half-Life 2: Raising the Bar" Mr. Friendly's attacks included knocking Gordon's weapons out of his hand, knocking off Gordon's glasses (making the screen go blurry) and even raping the player. It was created by Ted Backman, and the design was because Ted "decided to go with something that elicits a homophobic response". The in-game texture is also signed by Ted.