I am not defending meth. In fact, I hate it; it almost cost me my life. However, knowing meth like I do (did?), I can only imagine that the sleep deprevation that meth enduces is part of the problem. When I was up on meth (for days), my thought processes were not exactly civil (Saw some wild sh*t due purely to sleep deprevation); mind you, I am not gay, never engaged in such and never (while using or not) sought.
These idiots doing meth AND viagra? Damn, my heart would have exploded.
When I FINALLY kicked meth, I slept for 40+ hours. My room mate woke me 'cause he thought I might be dead. (nice of him to wait for 28 hours)
Viagara and Meth are heavily used in the infamous circuit parties... and then people are suprised about the sudden raise in HIV infections.