How many theorists does it take to change a light?

I was going to complain about how difficult it is to change the lights in my flat, but I think the problem is me. I have never seen this type of bulb before. Youtube is of some help.I know this is a boring post, but you don't want me sitting in darkness. After reading about this on the web, I saw that if you touch the glass, the bulb could start a fire. Just, great. Perhaps I will try to work by candle light.