I think people should be free to engage in any sexual practices they choose; they should draw the line at goats though.
I grew up playing about 15 instruments and the way that I was able to accomplish that was by cutting my classes, hanging out in the band room all day, and going from one instrument to the next to the next, until I learned how to play everything by ear.
I've been in many of them and to some extent I would have to say this; if you've seen one city slum you've seen them all.

