Thank you all for your contribution! I appreciated very much these videos you've shared with us. I found them pretty informative, and some of them made me laugh a lot. Though I'm afraid I have to disagree with that one about neutral gender toilets.
I'm looking forward to downloading a couple of them; however, I'm indecisive about what software I should choose to convert. A friend suggested I download one Youtube to mp3 or youtube video converter here. There are plenty of them, and I'd highly appreciate any helpful advice you could provide me!