Anything that can damage the ?

Asbestos is like a dust that if you breathe it in it stays in your lungs and keeps hurting them. I was with a drinking buddy having a few beers. For a reason I won't mention he was a little angry with me. I went up to my apartment to grab a quick meal and he came up but I said I'd be right back down. He went to the bathroom and he was acting suspicious b4 this occurred. Ya know having a shaky voice and what not. I listened and I didn't hear a piss stream, flush, faucet, or anything. I have a feeling he put something in my bathroom to poison my place. Is there any such thing as "killing someones " so to speak. Like evil spores or something for your testicles slash that hurt you. Like asbestos if exposed enough aculates until you have too much scar tissue to breathe. Ever since this incidence my libido has been down quite a bit and sorry to be graphic but my ejaculations have been like .25 to .33 as powerful as it once was. And this was right after this incidence. I asked my dad to see if anything was left in the house /bathroom. Like something that lodges in your /testicles that eats at you like asbestos or just shrinks your testes somehow. I could be completely wrong and just on a fluke but this is weird. If anyone knows anything I'd be glad to hear. My dad claims there was nothing there but even he seems questionable about this.