If a condom fails during sex, it fails spectacularly. There is virtually nothing left of it except the band around the base of the penis. It does NOT just get a little tear or pinhole.......it self-destructs! If you are actually able to fill it with water, it did not fail. And where did you read that filling it with water could expose you to your partners sexual fluids? If the condom failed, those sexual fluids would not still be in the condom.......they'd be in YOU. Even if you did get some of your partners fluids on you during your water test, which could only happen if the condom had not failed, that fluid would have been exposed to air and rendered inactive......and most importantly, that is simply NOT how HIV is transmitted. It must be transmitted INSIDE the human body. There is no "right" way to water test a condom because there will be no condom left to test! If you don't believe me, overfill one with water until it bursts...........see what you're left holding.