Pleae don't do this
Hello is this tef?
Yes. Who is this?
David
Who?
David (slowly and patronizingly)
Who is this, it's 8 am?
David (even slower this time)
Do you know what time it is, it's 8 am
You're a bad programmer. Good programmers would be awake right now, good programmers don't go to bed until 3 or 4 am.
Who is this? Why are you phoning me? I don't recognize who you are.
I just watched your YouTube talk and I was wanting to create something with you
I don't take offers from strangers over the phone and I don't appreciate being woken up. Goodbye.