How many egocentric people does it take to change a light bulb?

Just one. They put the light bulb in the socket and wait for the world to revolve around them.

How do you spot a egocentric vocalist?

They warm up singing, 'Mi, mi, mi.... Mi!'

My dad said It was Daniel Gabriel Fahrenheit and Anders Celsius to create the terms used for thermometer scales

I replied: Don't you think it's egocentric to name everything after yourself?
He said: well, to be fair they both worked hard for their degrees!

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