I'm pretty sure that ADD/ADHD isn't a spreadable disease.
Lol, how do humans acquire it then in the first place? By fapping in a lake? xD
Seeing as ADHD is a neurobehavioural disorder, I find it rather unlikely that fapping in a lake (or anywhere else for that matter) would potentially lead to you aquiring it.
Might be true, but both ADHD and orgasms play a part in your brain, so maybe there should be a large, unnecessary and costly study to determine if its true

I'm pretty sure that ADD/ADHD isn't a spreadable disease. Are you sure you didn't mean STDs or something else there, or did you mean free instead of clean?
I did mean clean, cause it was a joke ^_^u
Like what you said, with STD's you say your clean or not, even with cancer, so I used it with ADD/ADHD, and now I'm explaining the joke which kinda undoes the funniness of the joke (if it even was funny? No, not even a tiny smirk? T-T *sad-face*)
On the bright side, there are plenty of friendly organisms willing to make a home in your nether regions.
Yeah! That's why we shouldn't be fapping in a lake. >_<
How about the sea or ocean?
